Assquatch
{4}{R}
Creature -- Donkey
3.5/3.5
Each other Donkey gets +1{1/2}/+1{1/2}.
Whenever another Donkey enters, untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.
Flash Conscription
{5}{R}
Instant
Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. If {W} was spent to cast ~this~, the creature gains "Whenever ~this~ deals combat damage, you gain that much life" until end of turn.
Overtaker
{1}{U}
Creature -- Merfolk Spellshaper
1/1
{3}{U}, {T}, Discard a card: Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.