リージェント

• Type: Power
• Cost: 3
• Effect: End your turn. Each turn, play the first card of the turn for free.

Upgraded

• Cost: 3
• Effect: End your turn. Each turn, play the first card of the turn for free.

A strong passive power that ends your turn the moment you play it, but from then on the first card you play each turn is free. Already at 3 cost you recover the investment just by playing any 3-cost first each turn, and the bigger the first card's cost, the bigger the gain.

Heavenly Force (cost 2 → 0), End of the Stars (cost 1 + 3 stars → 0 + 3 stars), and other high-cost pieces become free every turn, giving you a massive effective energy boost. The turn-ending downside is real, but once planted, the per-turn benefit is enormous.

• The effect kicks in the turn after planting, so play it on a safe turn and reap benefits starting next turn
• Make a habit of leading every turn with a high-cost card — your energy efficiency skyrockets
• It's cost 3, so playing it early is tough. Plant it mid-to-late game in a fight you expect to drag on

• Heavenly Force: playing a 2-cost for free every turn is effectively +2 energy, with 3 attacks for free
• Seven Stars: letting the cost-2 (upgraded cost-1) Seven Stars go free every turn is insane efficiency
• Genesis: cost 2 power. Combined with Nullify it drastically saves energy while stacking stars

• Early Act 1: low priority. Cost 3 plus end-your-turn is fatal when you can't afford a safe turn
• Late Act 1: medium priority. Consider planting once your defense is stabilized
• Act 2 onward: high priority. The free play every turn compounds into massive energy savings
• Boss rewards: high priority. In long boss fights, the per-turn ongoing benefit decides the outcome