VJMP-JP288 月輪鏡 Gachirin Kyou (Full Moon Mirror)
Continuous Spell Card
You can only activate the (2)nd effect of this card’s name once per turn.
(1) Each time a monster(s) is destroyed by battle or effect, place 1 Full Moon Counter on this card for each.
(2) You can remove Full Moon Counters from this card, then activate 1 of these effects;
● 1: Special Summon 1 Level 6 or lower monster (Fiend or Fairy) from your hand or GY.
● 3: Add 1 Level 10 DARK monster from your Deck to your hand.
● 5: Special Summon 1 Level 10 monster from your hand or GY.

Level 10 DARK monsters That Can Be Added From the Deck To The Hand

Level 6 or lower Fairy or Fiend monsters

Source: YU-GI-OH!.jp