Instant Fusion [AP08-EN010] Super Rare Parallel Rare but when it does so

but when it does so using this effect

You can only Special Summon "Ritual Beast Tamer Zefrawendi(s)" once per turn

Set: Legacy of Darkness Card type: Spirit Monster Rarity: Rare Attack: 2000 Defense: 1600 This card cannot be Special Summoned

You can only use Each effect of "Uni- Zombie "ounce per turn

Instant Fusion [AP08-EN010] Super Rare Parallel Rare but when it does soSet: Astral Pack 8 Card type: Normal Spell Rarity: Super Rare Pay 1000 LP; Special Summon 1 Level 5 or lower Fusion Monster from your Extra Deck, but it cannot attack, also is destroyed during the End Phase. (This Special Summon is treated as a Fusion Summon.) You can only activate 1 "Instant Fusion" per turn.