Arahbo, Roar of the World
Legendary Creature - Cat Avatar | Power/Toughness: 5 / 5 (CMC 5)
Eminence -- At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.
Whenever another Cat you control attacks, you may pay . If you do, it gains trample and gets +X/+X until end of turn, where X is its power.
- [C17] Commander 2017 #35 (M)