Doublecast Dynamo
Expansion / Explosion is a split instant that rewards careful sequencing and precise math. Expansion copies an opponent or your own instant or sorcery when the stack matters most, letting you double a removal, counter, or draw spell for the same investment when you cast it for its {R}{U} cost. Explosion converts that copied momentum into board or card advantage by dealing X damage and replacing it with card draw for the same X value when you choose the other half for {X}{R}{R}{U}{U}.
This printing from Commander Tarkir: Dragonstorm plays into spell-slinging shells and midrange control lists where tempo and value trade frequently. Use Expansion to escalate a key spell and then pivot to Explosion when you need to close a race or refill after a board clear. The card rewards familiarity with stack interaction and careful X value planning; experienced players will find it a compact engine for both removal and card advantage. Grab this light play copy and slot it where your deck wants flexible answers and explosive turns.
Card Details:
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Mana Cost – Expansion: {R}{U} • Explosion: {X}{R}{R}{U}{U}
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Card Type – Instant // Instant
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Subtypes – —
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Card Text / Rules Text (Printed) – Expansion: Copy target instant or sorcery spell with mana value less than or equal to this spell's mana value. You may choose new targets for the copy. // Explosion: Explosion deals X damage to any target. Target player draws X cards.
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Power / Toughness – —
