AVR: Gisela, Blade of Goldnight (Foil) meta-clearance-may-2023 Discard a card: Prevent all

Discard a card: Prevent all combat damage that would be dealt this turn

so there is a balance between buying cards (3 megacredits per card) and actually playing them (which can cost anything between 0 to 41 megacredits

On their turn a player can take one of three actions:

First introduced in the Rails of North Expansion

AVR: Gisela, Blade of Goldnight (Foil) meta-clearance-may-2023 Discard a card: Prevent allFlying, first strike If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead. If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.