Mana Effects are a new feature unique to Mana Monsters, similar to the Pendulum Effects for Pendulum Monsters. In such a case, they are written in a transparent box located above the monster's lore box and next to the Mana Count. Mana Effects are always applied to Mana Monsters that are treated as Spell Cards. Unlike Pendulum Effects, however, because Mana Monsters are treated as Normal Spell Cards, Mana Effects are always essential to Mana Monsters.

Each Mana Effect contains a condition that gives the card an alternate name.