Heat Shimmer [Double Masters] Elf Mutant What these devices lacked in

What these devices lacked in subtlety

or you can take one of three other actions:

Set: Legends Type: Creature — Ooze Rarity: Uncommon Cost: {R} Primordial Ooze attacks each combat if able

Set: Amonkhet Type: Land — Forest Plains Rarity: Rare ({T}: Add {G} or {W}

Set: Double Masters Type: Creature — Elemental Rarity: Mythic Cost: {5}{G}{G} When Avenger of Zendikar enters the battlefield

Heat Shimmer [Double Masters] Elf Mutant What these devices lacked inSet: Double Masters Type: Sorcery Rarity: Rare Cost: {2}{R} Create a token that's a copy of target creature, except it has haste and "At the beginning of the end step, exile this permanent." "Better to flare out than to gutter." Flamekin expression