
Expansion // Explosion
Instant // Instant$0.22
Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy.
Explosion deals X damage to any target. Target player draws X cards.
Legal in Commander
Is
Does
Rewards
Combos 11
Expansion // Explosion + Narset's Reversal
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have an additional instant or sorcery card in hand with mana value 4 or less and valid targets as applicable.
Steps
Cast any instant or sorcery by paying its mana cost. Holding priority, cast Expansion by paying its mana cost, targeting the instant or sorcery cast in step 1. Cast Narset's Reversal by paying {U}{U}, copying Expansion targeting the spell cast in step 1 and returning the original Expansion to your hand. Cast Expansion by paying its mana cost, copying the copy of Expansion, targeting the copy of Expansion. Resolve the copy of Expansion, creating a copy of Expansion targeting the copy of Expansion. Repeat step 5.
Expansion // Explosion + Adaptive Training Post
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have an instant or sorcery card in hand with mana value 4 or less.
Steps
Cast the additional instant or sorcery by paying its mana cost. If Adaptive Training Post had two charge counters on it, it triggers, putting a charge counter on it. Holding priority, activate Adaptive Training Post by removing three charge counters from it, copying the next instant or sorcery spell you cast this turn. Cast Expansion by paying its mana cost, targeting the spell cast in step 1. Adaptive Training Post triggers, copying Expansion, with the copy targeting the original Expansion. Resolve the copy of Expansion, copying the original Expansion, with the copy targeting the original Expansion. Repeat step 5.
Expansion // Explosion + Alania, Divergent Storm
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have not cast an instant or sorcery spell this turn. You have a sorcery card in hand.
Steps
Cast the additional sorcery by paying its mana cost. Alania triggers; choose not to have an opponent draw a card. Holding priority, cast Expansion by paying {U/R}{U/R}, targeting the additional sorcery. Alania triggers, causing an opponent to draw a card and you to copy Expansion, with the copy targeting the original Expansion. Resolve the copy of Expansion, copying the original Expansion, with the copy targeting the original Expansion. Repeat step 5.
Expansion // Explosion + Twincast
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have a way to cast an additional instant or sorcery, or an opponent is casting one.
Steps
Cast any other instant and/or sorcery spell, or wait for an opponent to cast one. Holding priority, cast Expansion by paying {U/R}{U/R}, copying the next instant or sorcery spell you cast with mana value four or less. Cast Twincast by paying {U}{U}, targeting the instant or sorcery spell cast in step 1. The delayed trigger from Expansion triggers, copying Twincast, with the copy targeting the original Twincast. Resolve the copy of Twincast, copying Twincast, with the copy targeting the original Twincast. Repeat step 5.
Expansion // Explosion + Kalamax, the Stormsire
- Infinite +1/+1 counters on a creature
Commander Spellbook ↗How it works
Before you start
You have an additional castable sorcery.
Steps
Cast any sorcery by paying its mana cost. Holding priority, cast Expansion by paying its mana cost. Kalamax's first and second abilities trigger. Resolve the first ability, creating a copy of Expansion and choosing to copy the original Expansion. Resolve the second ability, putting a +1/+1 counter on Kalamax. Resolve the Expansion copy, creating a copy of Expansion. Kalamax's second ability triggers, putting a +1/+1 counter on itself. Repeat from step 6 any number of times.
Expansion // Explosion + Pyromancer's Goggles
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have an additional instant or sorcery card in hand with mana value 4 or less.
Steps
Cast any instant or sorcery with mana value 4 or less by paying its mana cost. Holding priority, activate Pyromancer's Goggles by tapping it, adding {R}. Cast Expansion by paying its mana cost, targeting the instant or sorcery cast in step 1. Pyromancer's Goggles triggers, copying Expansion, with the copy targeting the original Expansion. Resolve the copy of Expansion, creating a copy of Expansion targeting the original Expansion. Repeat step 5.
Expansion // Explosion + Prismari, the Inspiration
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have another instant or sorcery card in hand with the mana to cast it and applicable target(s) if needed.
Steps
Cast any other instant or sorcery by paying its mana cost. Holding priority, cast Expansion by paying its mana cost, targeting the instant or sorcery cast in step 1. Expansion's storm ability triggers, creating at least one copy of Expansion targeting the original Expansion Resolve a copy of Expansion, copying Expansion targeting the original Expansion Repeat step 4.
Expansion // Explosion + Fork
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Before you start
You have a way to cast an additional instant or sorcery, or an opponent is casting one.
Steps
Cast any other instant and/or sorcery spell, or wait for an opponent to cast one. Holding priority, cast Expansion by paying {U/R}{U/R}, copying the next instant or sorcery spell you cast with mana value four or less. Cast Fork by paying {R}{R}, targeting the instant or sorcery spell cast in step 1. The delayed trigger from Expansion triggers, copying Fork, with the copy targeting the original Fork. Resolve the copy of Fork, copying Fork, with the copy targeting the original Fork. Repeat step 5.
Expansion // Explosion + Rootha, Mercurial Artist
- Infinite magecraft triggers
Commander Spellbook ↗How it works
Steps
Cast an instant or sorcery spell, or wait for an opponent to cast one. Holding priority, cast Expansion by paying {U/R}{U/R}, targeting the spell. Activate Rootha by paying {2} and returning it to your hand, copying Expansion, with the copy targeting the original Expansion. Resolve the copy of Expansion, copying Expansion, targeting the original Expansion. Repeat step 4.
Expansion // Explosion + Gravitic Punch + Kalamax, the Stormsire
- Infinite +1/+1 counters on a creature
- Infinite damage
Commander Spellbook ↗How it works
Before you start
You have not cast an instant spell this turn.
Steps
Cast Gravitic Punch by paying its mana cost, targeting Kalamax. Holding priority, cast Expansion by paying its mana cost, targeting Gravitic Punch. Kalamax's first and second abilities trigger. Resolve the first ability, creating a copy of Expansion targeting the original Expansion. Resolve the second ability, putting a +1/+1 counter on Kalamax. Resolve the Expansion copy, creating a copy of Expansion, targeting the original Expansion. Kalamax's second ability triggers, putting a +1/+1 counter on itself. Repeat from step 6 any number of times. Once you have an arbitrarily large Kalamax, have the final Expansion copy target Gravitic Punch. This'll create two copies of Gravitic Punch in addition to the original Gravitic Punch. Resolve all Gravitic Punches, dealing infinite damage to each of up to three opponents.
Combo data from Commander Spellbook. Only combos of 2 or 3 named cards are listed.
Best commanders
Commanders whose abilities work with this card and share its colors, from what the cards do.
- Ral, Monsoon Mage // Ral, Leyline ProdigyRal, Monsoon Mage // Ral, Leyline Prodigy reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Mizzix of the IzmagnusMizzix of the Izmagnus reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Magnus the RedMagnus the Red reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Kaza, Roil ChaserKaza, Roil Chaser reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Vadrik, Astral ArchmageVadrik, Astral Archmage reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Melek, Reforged ResearcherMelek, Reforged Researcher reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Iron Lad, Young AvengerIron Lad, Young Avenger reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Niv-Mizzet, VisionaryExpansion // Explosion damages opponents, which Niv-Mizzet, Visionary can use.
- Avatar Aang // Aang, Master of ElementsAvatar Aang // Aang, Master of Elements reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.
- Hinata, Dawn-CrownedHinata, Dawn-Crowned reduces your spell costs, which Expansion // Explosion can use because it rewards an Instant or sorcery.