Groundbreaker Crix

Your attacks get +1

while attacking a hero who controls a Seismic Surge token.

Whenever you attack a Guardian hero, clash with them. The winner creates a Seismic Surge token.

Rulings

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

Pit-Fighter heroes are legal in Ultimate Pit Fight, but not legal in other official competitive young-hero formats like commoner and blitz.
If the opposing hero doesn’t control a Seismic Surge token, then gains control of one, your attacks will retroactively gain +1. If the opposing hero controls a Seismic Surge token, then loses control of it, your attacks will lose the +1 effect.
If the opposing hero gains control of a Seismic Surge token during the damage step and causes effect to become active, it will get the +1 from the opposing hero controlling a Seismic Surge token but the damage will not be recalculated.

Keyword notes

Clash - Clashing heroes reveal the top card of their deck. The hero that reveals the card with greatest {p} wins.

Clash is an effect keyword.
Effects that modify values of cards in your deck are considered when clashing (e.g. Kayo, Mutated Mass, etc.)
If you win a clash, the opponent is considered to have failed to win the clash.
If no one wins a clash, you’re both considered to have failed to win the clash.
If both you and the opponent reveal a card with the same , no one wins the clash.
If both you and the opponent reveal a card without and/or don’t reveal any card, no one wins the clash.
If you reveal a card with and the opponent reveals a card without , you win the clash.
If you reveal a card with and the opponent doesn’t reveal any card, you win the clash.