Phantasmal Forces [Alpha Edition] Darksteel it can't be blocked this

it can't be blocked this combat

Once per turn: You can detach 1 Xyz Material from this card

At the beginning of the upkeep of enchanted enchantment's controller

and Special Summon 1 "Blackwing" Synchro Monster from your Extra Deck whose Level equals the total Levels of the removed monsters

Knight-Cathar

Phantasmal Forces [Alpha Edition] Darksteel it can't be blocked thisSet: Alpha Edition Type: Creature Illusion Rarity: Uncommon Cost: {3}{U} Flying At the beginning of your upkeep, sacrifice Phantasmal Forces unless you pay {U}. These beings embody the essence of true heroes long dead. Summoned from the dreamrealms, they rise to meet their enemies.