As a pure one drop beater it is comparable to Pouncing Jaguar as it consumes a chunk of mana, obviously it is way better but you get the idea as to why Isamru is going to better when you have a good curve out draw
You don't need to worry if it's "good" or "powerful" the first time around
This set featured holographic V, VMAX, and VSTAR Charizard cards, along with a playmat, card sleeves, metal coin, damage counter dice, condition markers, a VSTAR marker, 16 Pokmon TCG booster packs from Sword & Shield , a Sword & Shield TCG Series Player's Guide, and a Pokmon TCG Live code
This can stop anything that triggers when sent to the graveyard or any surprises your opponent may have wanted to spring on you