Mirror March [Ravnica Allegiance Prerelease Promos] Squirrel Beast the next instant or sorcery

the next instant or sorcery spell you cast this turn has storm

Archfiend of the Dross enters the battlefield with four oil counters on it

Set: Tempest Promos Type: Creature — Wurm Rarity: Rare Cost: {4}{G} Whenever an opponent plays a land

III — Until end of turn

"Double or nothing

Mirror March [Ravnica Allegiance Prerelease Promos] Squirrel Beast the next instant or sorcerySet: Ravnica Allegiance Prerelease Promos Type: Enchantment Rarity: Rare Cost: {5}{R} Whenever a nontoken creature enters the battlefield under your control, flip a coin until you lose a flip. For each flip you won, create a token that's a copy of that creature. Those tokens gain haste. Exile them at the beginning of the next end step.