Blackout

Strategy and Synergy
Doesn't Synergize well, but is a safe 99dmg hit. It's pretty much a normal spell, that fits in every deck. The missing Synergy makes it a very lackluster spell. Combined with the rarity, it's just outclassed by a lot of other rarity 3 spells. This spell would be incredible if it were a bit more common, but currently the player is usually offered it near the End of a run. Getting a 100dmg spell when fighting enemies with 600 HP is just not very good. It also has a long startup, causing some Enemies to dodge it.