my feet got incinerated, i used my jutsu which was the catalyst jutsu, and then i used oral rebirth in the stead of the magnetic field
Oh.
Your turn where you used the magnetic field and the catalyst was unaccepted. I.E., because your first jutsu didn't help you, I gave you a chance to redo the turn, which you did: you redid the turn by using Oral Rebirth.
And that whole section didn't make sense. Here's the explincation:
There is a spherical rock prison. I'm inside of it, you're standing on top of it. I turn the prison to lava, melting off your feet, and you summon a catalyst that drops down. Now, this catalyst, because of the lava, would simply hit the outside of the spherical lava dome and explode at your feet, hurting you more, rather than me.
I then, from within the lava, turned the lava at your feet to rock, then exploded the rock. I don't need to be in contact with you for that jutsu.
For your catalyst jutsu, you have to basically be in contact with your opponent, which you were not: you were separated from me by a lava dome.