Flash

You may have this creature enter as a copy of any creature on the battlefield.

You may have this creature enter as a copy of any nonland permanent on the battlefield.

Raid — If you attacked this turn, you may have this creature enter as a copy of any creature on the battlefield.

Changeling (This card is every creature type.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

You may have this creature enter as a copy of any creature on the battlefield, except it has changeling.

You may have this creature enter as a copy of any creature on the battlefield, except it has haste and dethrone. (Whenever it attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

You may have this creature enter as a copy of any creature on the battlefield, except it has "Whenever this creature attacks, it connives." (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

You may have this creature enter as a copy of any creature on the battlefield, except it has ": This creature has base power and toughness X/X."

You may have this creature enter as a copy of any creature on the battlefield, except it enters with a shield counter on it if you control that creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

You may have this enchantment enter as a copy of any enchantment on the battlefield.

You may have this creature enter as a copy of a creature you control.

( can be paid with either or 2 life.)

You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

You may have this creature enter as a copy of any creature on the battlefield, except it has ", : Destroy target creature with the same name as this creature."

You may have this creature enter as a copy of any creature card in a graveyard.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

You may have this creature enter as a copy of any creature on the battlefield, except it's a Ninja in addition to its other creature types.

You may have this creature enter as a copy of any creature on the battlefield, except it's a Spirit in addition to its other types.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

You may have this enchantment enter as a copy of any artifact or enchantment on the battlefield.

You may have this creature enter as a copy of any creature on the battlefield, except it enters with an additional +1/+1 counter on it and it's the colors of your choice in addition to its other colors.

This spell can't be countered.

You may have this creature enter as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.