Ryuko, The Lost

Flying, Flanking
When this creature enters play, tap all other creatures and deal 1 damage to them, increase this damage by 1 for each time Ryuko, The Lost has entered play this game
{t}{5}: Remove Ryuko, The Lost from play, then return them to play under your control at the end of your turn
Ryuko, The Lost's power is equal the amount of times they have entered the play