Seismic Shelter (Blue)

Go again

Attack action cards you control get +X

while defending, where X is the number of Seismic Surge tokens you control.

At the start of your turn, destroy this.

Rulings

From the Mastery Pack: Guardian + Smash Palace release notes · August 8, 2025

Seismic Shelter’s second ability generates a static-continuous effect that applies to attack action cards you control as long as Seismic Shelter is a permanent in the arena. When applied, those attack action cards will get +X while they are defending where X is determined based on the current number of Seismic Surge tokens you control. The variable X here can change if the total number of Seismic Surge tokens changes (e.g. tokens are removed/created).
If the total number Seismic Surge tokens you control changes after the damage step, the value of X will update but the damage will not be recalculated.
If Seismic Shelter enters the arena, each existing defending attack action card will get +X. Damage dealt from the attack will not be recalculated for chain links where those existing defending action cards are and the chain link has passed the damage step.
Seismic Shelter’s third ability triggers at the start of your turn. You will destroy Seismic Shelter when this triggered effect resolves.

Keyword notes

Go again - Go again allows multiple actions to be played in a turn when usually playing an action with use up your action point, and therefore end your turn. A card with go again gives the controller of that card or activated ability 1 action point when it resolves.

When an action with go again resolves, its controller gains 1 action point.
Multiple instances of go again on the same card or activated ability do not stack. If a card or activated ability has multiple instances of go again when it resolves its controller gains 1 action point only.
If an action with go again does not resolve, its controller does not gain 1 action point.
You cannot reveal a card with no to Belittle. The card must have a value to its power that is 3 or less. (0 is a value)