Zetta Barrel Bomb

The Omega Barrel Bomb is the ultimate bomb that causes a colossal explosion that covers every area in the map minus the base camp. This nuke-tier explosion can OHKO any hunters that aren't within the range of the base camp - this is why its recommended to farcaster as soon as you drop the small barrel bomb down to avoid death. This explosion annihilates every monster within the area whether it be small or large, the only monsters that don't OHKO to this are elder dragons (such as Teostra) and elder-dragon levelled monsters (such as Deviljho) - even then, this explosion leaves them heavily weakened with little to no HP.

Materials

Colossal Barrel (1% chance of collecting from barrel piles)

Immolation Core (5% chance of a carve from Akantor, Fatalis, Dire Miralis and Kalerbus - or 10% chance of gathering within the throne room of the citadel in Apocalyptia).