Push the Limit

Return all artifact cards from your graveyard to the battlefield. They gain haste until end of turn.

Cast this spell only during combat.

Return target creature card from your graveyard to the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step.

You may put a creature card from your hand onto the battlefield. That creature gains haste. Its controller sacrifices it at the beginning of the next end step.

You may put an artifact or creature card from your hand onto the battlefield. That permanent gains haste, "When this permanent leaves the battlefield, it deals damage equal to its mana value to each creature," and "At the beginning of your end step, sacrifice this permanent."

Shuffle your library, then mill four cards. Put each creature card milled this way onto the battlefield. They gain haste. At the beginning of the next end step, return those creatures to their owner's hand.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose three. You may choose the same mode more than once.

• Create a token that's a copy of target creature you control. It gains haste. Sacrifice it at the beginning of the next end step.

• Exile target artifact or enchantment.

• Creatures target player controls get +1/+1 and gain first strike until end of turn.

You and target opponent each gain control of all creatures the other controls until end of turn. Untap those creatures. Those creatures gain haste until end of turn.