UlcerateHow it works & interactions with other cards

What It Does

Ulcerate is a targeted instant that applies a -3/-3 stat reduction to a creature until the end of the turn. Simultaneously, the spell causes its caster to lose 3 life. Because it uses negative modifiers rather than damage, it can effectively bypass keywords like Indestructible.

Resolving Ulcerate Step by Step

When you cast Ulcerate, you must first choose a legal target creature. As the spell resolves, the game checks if the target is still valid. If it is, the creature receives -3/-3 and you lose 3 life. Crucially, the life loss is part of the effect, not the cost; if the target becomes illegal (for instance, by gaining Protection from Black or being sacrificed) before the spell resolves, Ulcerate is removed from the stack and you lose no life.

Common Mistakes

A frequent error is assuming the life loss occurs regardless of what happens to the creature. Because the spell only has one target, the entire spell fails to resolve if that target disappears. Another mistake is using it on a creature with 3 toughness and expecting it to die if the spell is countered; no effects, including the life loss, happen if the spell does not resolve.

When to Play It

Ulcerate is best utilized in aggressive decks that need to clear blockers quickly or in control decks as a cheap answer to fast starts. Since it is an instant, you can use it during an opponent's turn to disrupt their plans or during your own combat phase to ensure your creatures can win an engagement.

Interaction examples

Explosive Early Mana

Dark Ritual

You can use Dark Ritual to generate three Black mana. You then spend one of that mana to cast Ulcerate, removing a key early-game blocker while still having two mana left to cast another threat or a card like Vampiric Tutor.

Setting Up Your Next Turn

Vampiric Tutor

If your opponent plays a dangerous creature, you can cast Ulcerate to kill it, losing 3 life. Afterward, you can cast Vampiric Tutor to search your library for a finisher, losing another 2 life. This sequence is powerful but high-risk, as you have traded 5 life total to stabilize the board and fix your next draw.

Basic Removal

Cast Ulcerate targeting a 2/2 creature. Upon resolution, the creature becomes a -1/-1 creature and is put into the graveyard for having zero or less toughness. You then mark a 3-life reduction on your life total.