I was in a 1v1 against donbinedaktis, he was sly and I was dante. Turns out that if a mine is put on the map, (like sly's and sweet tooth's, not sure about isaac's) Dante can use it to launch with up square. Here's how, on the ground, forward triange, forward circle, up square. I know it's small but I'm currently using it as a surprise setup for an air combo. I know it's unclear, so If you want me to show you, add me, my psn id is deadpoolquinn.
EDITED: sorry, it's up square, typo! lol