Dakki, the Graceful Mayakashi (MAMA-EN016) [Magnificent Mavens]

You can only control 1 "Dakki, the Graceful Mayakashi". When a "Mayakashi" monster(s) is Special Summoned to your field from the Extra Deck, while this card is in the GY (except during the Damage Step): You can Special Summon this card. You cannot Special Summon monsters from the Extra Deck the turn you activate this effect, except "Mayakashi" monsters.