ネクロバインダー

• Type: Skill
• Cost: 1
• Effect: Summon 3. Exude a card from your draw pile.

A deck-thinning Skill that does Summon 3 (Osti HP +3) AND Exudes a card from the draw pile — for 1 cost. One card covers both Summon and deck compression, and shines in early-mid game by clearing Strike, Defend, etc. to refine the deck.

Deck compression is valuable for every build, but Soul decks benefit especially — thinning the draw pile raises Soul density in the deck and increases the frequency at which Soul Eater, Soul Extraction, etc. land in hand. Osti-Attack decks can strip Skills and Powers to boost Attack ratio. Unlike Harvest (2 draw + Exude), Purify lets you pick the Exude target from the draw pile, so you preserve hand value while surgically removing weak cards.

Rating: B-tier (dual-purpose Skill covering Summon and deck thinning, helps deck refinement)

• Early on, Exude Strike/Defend basics to build a deck of only strong cards
• Summon 3 restores Osti HP while simultaneously thinning the deck — two jobs at once
• In Soul decks, Exude weak cards to raise Soul density in the draw pile
• While Osti is alive, the Summon 3 is always useful — even when there's nothing left to Exude, it keeps its baseline value

• Soul Rip: converts Souls to damage. Purify raises Soul density in the deck
• Soul Extraction: converts Souls to Block. Purify's thinning makes Souls come up more often
• Harvest: 2 draw + Exude Skill. Purify plus Harvest double up on deck compression
• Sic 'Em: Purify does Summon, not Osti's "Attack", so note it does NOT trigger Sic 'Em
• Bodyguard: cost 0 Summon 5-7. Pair with Purify to stabilize Osti's HP