Ender Force

Devoid (This card has no color.)

You Can't Cast a Legend spell unless you
have no creature cards in your hand; Legend
Spells Count as Sorceries

Return target permanent to it's owners hand. Each
player adds X mana to each players mana pool.
This Mana can be spend to cast any colored
or colorless spell. Each player doesn't lose
this mana til end of that players turn