Illusionary Mask 543/594 (30th Anniversary Edition) Slime Sovereign Whenever an ally you control

Whenever an ally you control dies while it's not your turn

You get an emblem with "Instant and sorcery spells you cast have storm

{T}: Add five mana in any combination of colors

First strike Firebending X

Illusionary Mask 543/594 (30th Anniversary Edition) Slime Sovereign Whenever an ally you control{X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2 2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage,