one piece booster box op 10 Card JP Pack 'Royal Blood' OPC-TCG-OP-10-382246 a colorful mix ONE PIECE OP-10 ROYAL BLOOD

That being said, compared to Scute Swarm, you do need to perfectly curve out

Adding further proof, Trafton gave a little more context in the posts comments

Each has a table to describe what result the roll will get you, often with a nice bonus for managing to roll that natural 20

Clearly aimed at Zombie tribal decks, it doubles the number of board wipes needed to clear your battlefield, and can turn unwanted Zombies into more cards

Although you can call it a precon upgrade, you can start from zero and buy singles

Its in green, so of course youre going to have the creatures to help reduce its cost, and you can create massive loops with +1/+1 counters and persist effects