Thunderbird Feather

by coner_

Gain 3 Chain. If you've gained (0/50) Chain with this card in hand, upgrade this card. Chain. upgradeable.

Chain

Increase the damage of the next action by 1 per stack. Chain fades if a played card did not increase Chain.

upgrade

Upgraded cards deal one additional damage per upgrade.

upgradeable

This card can be upgraded and improves the card in unusual ways.