yugioh all polymerization cards RA03-EN051 but you lose LP equal to the total ATK of the monsters banished this way Ultimate polymerization : r/customyugioh

Goblin Grenade is part of the reason that tribal Goblins was popular well before such decks were tournament-viable High Tide High Tide was a useless card for a few years, and then people figured out that you could use the instant as a mana engine in a combo deck

Damage is measured in units called "Damage Counters", each unit of which represents 10 HP

But nowhere is the card close to Treasure Cruise or Dig Through Time and lines up way more in the overall power level of both Legacy and Modern

SE Secret Rare Blue-Eyes Shining Dragon X LIGHT Level 10 [ DragonEffect ] ATK 3000 DEF 2500 Cannot be Normal Summoned/Set

It makes sense, given the name

It's also got the first appearance of characters from Gargoyles, which is rather a surprise