Mega Minions are entities summoned with a Special Skill that inherit some HP and Attack power from the Hero who casts them. They are applied to one or more targets and generally provide some positive effects for the Caster or their team, depending on the type. The specific benefits of a Mega Minion are shown on the Caster’s Hero Card.

When cast, the Mega Minion will replace all existing Minions and Fiends. Heroes can only have one Mega Minion active at a time. They cannot be replaced by new Minions or Fiends. Effects that would destroy a normal Minion will instead remove 50% of a Mega Minion’s max health.
Read more about Minions here: What are Minions? and Fiends here: What are Fiends?

Damage targeted at a Hero with an active Mega Minion will first be subtracted from the Mega Minion’s health before affecting the Hero, unless otherwise stated by a Special Skill.