All UHC Game Modes Explained wrote

Ore Frenzy
So first of all, this is a super OP game mode. Prepare for lots of players to be incredibly stacked.
If you mine Lapis Ore you get a splash potion of healing
If you mine Emerald Ore you get 32 arrows
If you mine Redstone Ore you get an unenchanted book
If you mine Diamond Ore you get a diamond and 4 bottles of xp
If you mine Quartz Ore you get a block of TNT