The High-Cost Trajectory Build exploits Regent's Trajectory mechanic — cards with the Trajectory keyword scale their effects proportionally to the Energy spent on them. By artificially inflating card costs through modifiers and then funding those inflated costs with Stars and Energy generation, the build transforms normally expensive cards into catastrophically powerful single plays. It is one of Regent's most technically demanding builds but offers an unmatched damage ceiling when properly assembled.

• Collision Course: Attack with Trajectory — the more Energy spent, the more damage it deals; the primary finisher for the build at maximum cost.
• Supermassive: High-cost Attack that scales with cost paid; Trajectory synergy makes each additional point of cost directly translate to additional damage.
• Heavenly Drill: Attack with escalating damage based on Energy investment; combine with cost-inflation cards for extreme single-hit values.
• Refine Blade: Skill that increases a card's cost permanently or for the turn, the key tool for pushing Trajectory cards to their maximum value.
• The Smith: Skill that upgrades or modifies cards including their cost, allowing precise cost manipulation before the finisher turn.
• Genesis: Power that generates additional Energy each turn, solving the fundamental problem of funding inflated costs.
• Furnace: Power that converts resources into Energy, providing the fuel needed to play cost-inflated Trajectory cards without running dry.

• Fencing Manual: Provides bonuses that apply when playing high-cost cards, rewarding the Trajectory investment with additional effects.
• Regalite: Star generation supplements Energy when Stars can be spent to cover partial costs, reducing dependence on raw Energy alone.
• Divine Destiny: Triggers when Stars are consumed; if Stars are used to fund the inflated cost of a Trajectory card, this relic fires on that same play.

1. Identify your primary Trajectory finisher (Collision Course or Supermassive) early and commit to building around it — the build requires the specific finisher to function.
2. Obtain Genesis or Furnace before Act 2 Elites; without additional Energy generation, cost-inflated cards are unplayable and the build collapses.
3. Use Refine Blade or The Smith to permanently raise the cost of your Trajectory finisher by 1-2 Energy — this is a one-time investment that pays off every subsequent combat.
4. Each turn, generate Energy and Stars first (Genesis, Furnace, Star generators), then play the cost-inflated Trajectory finisher last to consume all available resources at maximum value.
5. In Boss fights, plan your inflation carefully — inflating the finisher cost to 5 or 6 Energy requires Genesis plus Stars to be simultaneously available; verify the math before inflating beyond what you can fund.

• Highest: Collision Course, Supermassive (Trajectory finishers), Genesis (Energy engine)
• High: Refine Blade, The Smith (cost manipulation tools)
• Medium: Furnace, Regalite relic (supplementary resource generation)
• Low: Attack cards without Trajectory; their damage does not scale with the cost-inflation investment

• Inflating a card's cost is only valuable if you can actually pay that cost — always verify your Energy plus Stars can cover the inflated value before using Refine Blade.
• Cards inflated with Refine Blade carry the higher cost permanently. If you inflate a Collision Course to cost 5 and later draw it in a fight where Genesis is not yet active, you may be unable to play it. Keep at least one lower-cost backup attack.
• The Smith can also upgrade the Trajectory card itself, increasing its base scaling rate in addition to the cost manipulation — combine both effects when possible for multiplicative gains.
• Against Act 3 enemies that drain Energy at the start of your turn, maintain a small Star reserve as an alternative funding source so the Trajectory finisher can still fire even after Energy drain.