Rainbow

Rainbow is a rare Defect skill costing 2 Energy that channels 1 Lightning, 1 Frost, and 1 Dark Orb before Exhausting. This single card establishes Orb diversity in one play, providing offensive pressure through Lightning, defensive Block through Frost, and scaling damage through Dark. The Exhaust cost is a small price for such comprehensive board development.

Rainbow is exceptional with Compile Driver, which draws cards based on unique Orb types and draws at least 3 after Rainbow fills three slots. Synchronize grants Focus for each unique Orb type, making Rainbow an ideal setup card. Defragment boosts all three Orb types simultaneously, and Barrage deals damage per Orb, counting all three.

For the Defect, Rainbow is one of the most efficient rare cards for establishing a balanced Orb board. Against bosses like Kaiser Crab and Test Subject #C10, the diverse Orb generation provides both offense and defense in a single card. Against Ceremonial Beast, the Lightning channel provides AoE potential while Frost keeps you alive. Use Rainbow early in fights to set up Compile Driver and Synchronize for maximum value.