Weakness [Beta Edition] OTS Tournament Pack 15 You can only use this

You can only use this effect of "Harpie Channeler" once per turn

You can only use 1 "Machina Megaform" effect per turn

You must also Tribute monsters from your hand or field whose total Levels equal or exceed the Level of the Ritual Monster you Ritual Summon

Set: Sun & Moon: Black Star Promos Type: Grass Rarity: Promo Retreat cost: Colorless

Set: Legendary Collection Kaiba Card type: Normal Spell Rarity: Ultra Rare Destroy all Fiend monsters on the field

Weakness [Beta Edition] OTS Tournament Pack 15 You can only use thisSet: Beta Edition Type: Enchantment Aura Rarity: Common Cost: {B} Enchant creature Enchanted creature gets 2 1.