Change out the things buffet node in epic difficulty

I’m pretty far in the game half way to being uncollected and I wanted to finish epic difficulty of the the last stand event and the only champ that does consistent damage on the node is hawk eye and mine is r2 4 star and i have 0 iso and little gold and when I’m fighting him I either do some damage and then when he’s unblockable and I avoid his attacks he just regenerates all of his health and when I try to play aggressive the same thing happens what I’m asking is to maybe change the bufet node to something else