Arcades Sabboth
{2}{G}{G}{W}{W}{U}{U}
Legendary Creature -- Elder Dragon
7/7
Flying
At the beginning of your upkeep, sacrifice ~this~ unless you pay {G}{W}{U}.
Each untapped creature you control gets +0/+2 as long as it's not attacking.
{W}: ~this~ gets +0/+1 until end of turn.