If the result is a face-down card, it's a colorless 2/2 creature, the same as one would get from using the morph ability
A.I.'s Show Card Text While you control a Link-3 or higher "@Ignister" monster in the Extra Monster Zone, when an opponent's monster declares an attack: Special Summon from your Extra Deck any number of non-Link Cyberse monster(s) with 2300 ATK, whose combined ATK is less than or equal to the attacking monster's ATK, then end the Battle Phase
Send 1 "Halloween" card from your Deck to the Graveyard, then your opponent can send up to 2 cards from their Deck to the Graveyard, and if they do, they take 500 damage for each card sent to their Graveyard this way
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Fourth match didnt happen this week so I finished 1-2 (+1 win for concession)