Ultima Online Potions have become a major part of the PvP scene in Ultima Online. Anyone who plans to be a serious contender now stocks up on essential potions needed during combat. Some are used for buffs while others can heal and cure you. There are even potions that explode when thrown, damaging anything in the area. The cure and heal ultima Online potions help keep you alive while the strength agility potions are great stat buffs. The poison potions can be applied to weapons so that they infect on hit.