1 Tuner + 1+ non-Tuner WIND monsters
If this card is Synchro Summoned: You can target 1 Windwitch monster in your GY; inflict damage to your opponent equal to half its ATK. You can only use this effect of Windwitch – Diamond Bell once per turn. Once per turn, if your opponent takes battle or effect damage: You can target 1 card on the field; destroy it. This effect can be used up to twice per turn if this card was Synchro Summoned using only Windwitch monsters as material.