If we go for 13... jump@e4 Bxg2 then a possible continuation could be 14. freeze@f7 Bg5, freeze@f4 Bxh1 15. Nh3, Rxg5 16. Nxg5, Bg2 17. Nxf7, Nc6. Here we are up a piece, but down a jump. I'm generally not a fan of having a jump spell disadvantage, and our development looks a bit behind, but maybe you guys think its fine. Lets consider some other moves too.
What about something like 13... Rxe2 14. Nh3, Na6 15. Bg5, Rxg5 16. Nxg5, jump@e4 Bxh1? It's pretty similar, but we are a bit more developed.
It's hard to say which is best because there are many possible options for both white and black
Maybe yes. After Kxe7 white also has 13. freeze@f7 Bg5. If we go freeze@f4 bxc4, then Nf3 and we either have to sack the rook or give up the knight. However, we can also try 13... freeze@f4 h6. 14. Bxe6, Rxg5. which looks really good for us I think. Edit: nvm I forgot that whites jump is on cooldown, so white will never go for this