ネクロバインダー

• Type: Skill
• Cost: 1
• Effect: Retain. Revive 3. Heal Osty 5 HP.

A cost-1 Retain Skill with Revive 3 and Osty +5 HP — three bundled Osty-maintenance effects. Because it Retains, you can save it in hand and play it at the exact moment Osty is in trouble.

Total effective Revive is 8 (Revive 3 + 5 HP heal), which makes it a very cost-efficient cost-1 heal. Bodyguard (cost 0, Revive 5-7) has better raw numbers, but Retain's flexibility is the differentiator. Plays nicely as recovery after sacrificing Osty with Bone Shard or Sacrifice. Not the full-heal Revive 25 gets you, but reliable Osty HP maintenance turn-to-turn.

Rating: B-tier — a convenient Retain Osty-heal skill, a solid support card in Osty-dependent decks.

• Use Retain to time it to the exact turn Osty is in critical condition
• Use after Bone Shard / Sacrifice as rebuild / re-Revive
• Revive 3 means you don't need Show Time to top Osty's HP up
• Not a preventive play — save for the turn you actually need Osty alive

• Bodyguard: cost 0, Revive 5-7. Stack with Encouragement for massive same-turn Revive
• Bone Shard: sacrifice Osty for AoE damage + Block. Encouragement rebuilds Osty afterwards
• Revive: Revive 25 full heal. Encouragement patches smaller HP holes in between
• Show Time: Osty triggers Revive on attack. Revive 3 from Encouragement does not trigger Show Time
• Sacrifice: sacrifice Osty for 2x max HP Block. Encouragement rebuilds Osty quickly for the next cycle

• Necrobinder Necromastery Combo (A-tier)