Arahbo, Roar of the World is a mythic Legendary Creature — Cat Avatar card from Secret Lair Drop (SLD), collector number 25. Current market price: — (foil $70.19), TCGplayer market prices via Scryfall.
Eminence — At the beginning of combat on your turn, if Arahbo 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 {1}{G}{W}. If you do, it gains trample and gets +X/+X until end of turn, where X is its power.