Railgun

Description
Fire piercing lasers thrice, for 50 damage each. Add 2 to your deck.

Strategy and Synergy
The strongest 0-cost spell that doesn't need upgrades or setup. The insane damage is only used in Jam decks, due to Railgun generating 2 Jams. This spell is a must-pick for any viable Jam-only deck. It works well with and, because it sets up a lot of. Outside of Jam decks, it's not very good, because it adds 2 s.