Adaptive Training Post + Expansion // Explosion

Prerequisites

• You have an instant or sorcery card in hand with mana value 4 or less.

Steps

1. 1Cast the additional instant or sorcery by paying its mana cost.
2. 2If Adaptive Training Post had two charge counters on it, it triggers, putting a charge counter on it.
3. 3Holding priority, activate Adaptive Training Post by removing three charge counters from it, copying the next instant or sorcery spell you cast this turn.
4. 4Cast Expansion by paying its mana cost, targeting the spell cast in step 1.
5. 5Adaptive Training Post triggers, copying Expansion, with the copy targeting the original Expansion.
6. 6Resolve the copy of Expansion, copying the original Expansion, with the copy targeting the original Expansion.
7. 7Repeat step 5.

Effects

• Infinite magecraft triggers