Dungeons Potions

Adds these potions to the game:
Shadow Brew:

Makes the player invisible for 10 seconds, and does extra damage upon attacking.

Oakwood Brew:

Gives the player damage resistance.

Sweet Brew:

Gives the player freexing immunity.

Dense Brew:

Gives the player super strong resistance.

Burning Brew:

Gives the player fire resistance and burns mobs around the player.