Showdown

Description
Everyone gains Fragile.

Strategy and Synergy
Applying Fragile to all enemies for 0 mana is an outstandingly good effect, although the downside of also gaining Fragile yourself can lend itself to danger. Some Spells and Artifacts, such as Limit Break and Beaker, can take advantage of this downside though.

Showdown pairs well with high damage spells that deal damage in one strike, such as Lifesword, EXPLOSION!, and Ragnarok. However, even with low damage hits it is still damage for 0 mana, which is generally always welcomed.