サイレント

• Type: Skill
• Cost: 1
• Effect: This turn, your next Skill is played twice.

Upgraded

• Cost: 1
• Effect: This turn, your next Skill is played twice. (Cost becomes 0 after upgrade)

A premium multiplier that doubles the effect of your next Skill. Blade Burst into Deadly Poison dumps 10–14 Poison in one turn. Blade Burst into Blur = 10–16 Block plus a 2-turn carryover. Blade Burst into Mirage turns your Poison stack into massive Block. Holding Blade Burst and a key Skill every turn with Tactician is the blueprint combo for Poison decks. Upgraded, it becomes cost 0 — a free skill-doubler that never fights for energy. Slots into every Silent skill-centric or poison deck as one of the class's strongest Skills.

• Basic pattern: Blade Burst, then the strongest Skill in hand.
• With Tactician, retain Blade Burst + Deadly Poison (or Blur, or Mirage) every turn for a recurring combo.
• Upgraded Blade Burst at cost 0 competes with nothing in your energy budget.
• Blade Burst into Mirage at 30 Poison = 60 Block. A defensive wall on top of offensive Poison.
• Blade Burst into Screech slaps every enemy with 12–18 Weak — effectively neutralizes a turn of enemy damage.

• Deadly Poison: 5–7 Poison applier. Blade Burst into Deadly Poison is the core engine of any Poison deck.
• Blur: carry Block for 2 turns. Blade Burst into Blur gives 10–16 Block for 1 energy plus carryover.
• Mirage: gain Block equal to total Poison (Exhaust). Blade Burst into Mirage doubles the conversion.
• Tactician: retain at end of turn. Hold Blade Burst + key Skill every turn to lock in the combo.

• Silent Corruption Draw Build (B-tier)
• Silent Poison Build (key card) (S-tier)
• Silent Nightmare Blur Build (A-tier)