リージェント

• Type: Attack
• Cost: 0 (spend 3 diamonds)
• Effect: Deal 14 damage to ALL enemies.

Upgraded

• Cost: 0 (spend 3 diamonds)
• Effect: Deal 18 damage to ALL enemies.

A potent AoE that spends 3 diamonds for 0-cost 14-18 AoE damage. Devastating in multi-enemy rooms, particularly for clearing adds in boss fights and sweeping through multi-enemy encounters.

The key strength is the 0 Energy cost — huge damage without tying up Energy. But 3 diamonds is a notable spend, so decks with poor diamond supply can't support it. Genesis, Glimmer, and Hidden Hoard-based diamond economies are the prerequisite.

• Prioritize it in multi-enemy fights. Single-target use isn't always worthwhile
• Pre-load diamonds via Genesis (2-3), Glimmer (1-2), etc. before triggering
• With Black Hole, each diamond spent deals extra AoE — total damage balloons

• Genesis: 2-3 turn-start diamonds roughly covers Stellar Pulse's cost
• Black Hole: 3 extra AoE hits from the diamond spends — damage stacks higher
• Starchild: Block on diamond spend. Attack and defense fire together
• Glimmer: 1-2 diamonds + draw 2. Excellent setup that fuels both Stellar Pulse and hand quality