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Roar of Jukai
Instant — Arcane
If you control a Forest, each blocked creature gets +2/+2 until end of turn.
Splice onto Arcane—An opponent gains 5 life. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Rulings (5)
If all of the spell’s targets are illegal when the spell tries to resolve, it won’t resolve and none of its effects will happen.
Jun 7, 2013
A card with a splice ability can’t be spliced onto itself because the spell is on the stack (and not in your hand) when you reveal the cards you want to splice onto it.
Jun 7, 2013
You reveal all cards you intend to splice at the same time. Each individual card can be spliced only once onto any one spell.
Jun 7, 2013
Legality
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