Hydromorph GullHow it works & interactions with other cards

A Shield in the Skies

Hydromorph Gull possesses the Flying keyword, making it an effective attacker or blocker against other winged threats. However, its true power lies in its activated ability. By paying one blue mana and sacrificing the Gull, you can counter a spell that targets a creature you control. Note that the ability specifically targets a spell that targets a creature, so it cannot be used to stop spells targeting you, your planeswalkers, or other noncreature permanents.

Sacrificing for the Greater Good

When you activate Hydromorph Gull's ability, sacrificing the creature is part of the cost. This means once you announce the ability and pay the costs, the Gull is moved to the graveyard before the ability even hits the stack. Your opponent cannot respond to the sacrifice to try and kill the Gull with a different spell to stop the counter effect; the Gull is already gone.

Timing and Targets

To use this ability, there must be a spell on the stack that includes at least one creature you control as a target. If a spell targets multiple things (like a spell that deals damage to two different targets), as long as one of those targets is a creature you control, Hydromorph Gull can counter the entire spell. This effectively saves all targets of that spell, not just your creature.

Common Pitfalls

A common mistake is trying to use Hydromorph Gull to counter abilities. The text specifically says 'counter target spell,' which means it works against cards being cast from the hand, library, or graveyard, but it does not work against activated or triggered abilities (like a creature's 'enters' effect). Additionally, if a spell has 'This spell can't be countered,' you can still activate the Gull's ability, but the spell will resolve normally despite the sacrifice.

Interaction examples

Protecting the Golem

Solemn Simulacrum

You have both Solemn Simulacrum and Hydromorph Gull on the battlefield. Your opponent casts a spell like Murder targeting your Solemn Simulacrum. In response, you pay one blue mana and sacrifice Hydromorph Gull. The Gull goes to the graveyard, and its ability targets the Murder. The Murder is countered and placed in your opponent's graveyard, and your Solemn Simulacrum remains safe on the battlefield.

The Double Sacrifice Play

Roaming Throne

If you have Roaming Throne on the battlefield with 'Bird' chosen as the creature type, it will not double the Gull's sacrifice ability. This is because Hydromorph Gull has an activated ability (indicated by the colon), and Roaming Throne only doubles triggered abilities (indicated by 'when', 'whenever', or 'at'). You still sacrifice the Gull once to counter one spell targeting your Roaming Throne.

Managing the Stack

If your opponent casts a spell targeting Hydromorph Gull itself, you can activate the Gull's ability to counter that spell. Because the Gull is a 'creature you control' at the moment you activate the ability, it is a legal target for its own protective effect. The Gull is sacrificed as a cost, the spell targeting it loses its only target and is countered by the game rules, or explicitly by the Gull's ability if it was still on the stack.