Stairs of Mail

During your Main Phase: You can activate this effect; discard 1 "Tindangle" card, and if you do, apply 1 of these effects. ● Change 1 face-down Defense Position monster you control to face-up Attack Position. ● Change 1 face-up Attack Position monster you control to face-down Defense Position. This turn, you cannot discard another card with the same name for the effect of "Stairs of Mail" (even if this card leaves the field).

Continuous Spell Card spell