splinter twin again

Haste : Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

Enchant creature Enchanted creature has ": Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, untap all creatures you control.