ネクロバインダー

• Type: Attack
• Cost: 1
• Effect: Osti deals 10 damage. Deal additional damage equal to Osti's max HP.

A 1-cost Osti Attack that hits for 10 plus Osti's current max HP. Scales on how high Osti's max HP is — max HP 25 means 10+25 = 35 damage, max HP 15 means 10+15 = 25 damage.

Right after Revive (Summon 25, fully heal Osti), Protector becomes a 1-cost 35-damage bomb — ridiculous cost efficiency. Bone Enhancement (+4 Osti damage) bumps the base 10 to 14 for even bigger numbers. Keeping Osti's HP high at all times is the key, so use Go Get'em (Summon 2-3 on Osti attack), Encourage (Summon 3 + HP 5 heal), and similar to pad HP regularly. Paired with Sacrifice (Osti max HP × 2 Block), you can first drop Protector for high damage, then Sacrifice Osti for huge Block as a 2-stage combo.

Rating: A-tier (max-HP scaling finisher, peak efficiency right after Revive)

• Drop Protector the turn right after Revive restores Osti to max HP 25 for a 35-damage hit
• Keep Osti's HP topped up via Go Get'em, Encourage, Bodyguard — stack Summon aggressively
• With Bone Enhancement the swing totals 39 damage per play
• Protector's Osti attack also triggers Go Get'em's Summon on play

• Revive: Summon 25 fully heals Osti. Follow with Protector for a 10+25 = 35 hit
• Bone Enhancement: +4 Osti damage. Protector's base 10 becomes 14
• Go Get'em: Summon 2-3 per Osti attack. Every Protector triggers it and refills Osti HP
• Sacrifice: Osti max HP × 2 Block. Protector for damage, then Sacrifice for huge Block
• Necromastery: converts Osti HP loss into AoE damage. Not directly triggered by Protector, but part of the same deck ecosystem

• Necrobinder Necromastery Combo Build (A-tier)
• Necrobinder Osti Multi-Attack Build (S-tier)