Once per Chain, when your opponent activates a monster effect while you control no monsters (Quick Effect): You can Special Summon both this card from your hand and 1 "PSY-Frame Driver" from your hand, Deck, or GY, and if you do, negate that activation, and if you do that, destroy that monster
I find Sygg to be especially potent in multiplayer, and Commander specifically, where lots of people lose 3 or more life a turn, and it's constantly triggering at the end of any turn in which someone was smashed in combat for three
But as long as its on their field, they cannot Fusion, Synchro, XYZ, or Link Summon unless this card is used as material
Windwitch - Ice Bell starts off the engine, but prevents you from special summoning anything but level 5 and higher monsters from the extra deck for the entire turn if you wish to use her
If this card has an "Isekaiman" monster as one of its materials, this card can not be targeted by your opponent's card effects