Fight The Nest tips

this is a great deck it has served me very well but since rotation i have struggled greatly to find my beef-cake replacements like polukranos. the original design had rebble hulk raiders, boros reconers and clan defiances i just finished adding in the polymorphous rush which had improved the deck but it made it even more reliant on the nest. i added blue as its not hard to get it especially with the new lands and to try a new direction. the decks biggest weakness is the alternate win condition. i had it before with raiders. it didnt matter if i drew the nest or not i had a creature that had to be dealt with soon or the match was mine in 3 simple swings, not to mention the fact that purphoros was a creature nearly every game as well so i lost an additional 3 beefcakes. i dont mean to sound like im complaining but i need help on finding a patch to this gaping hole :(. cuts i am considering atm keranos, restock, burning anger (will end up in sideboard if its replaced because i kinda like tap-kill or a 3 card 2 manna legion combo of hornets (its so awesome when i can pull it off) sorry for being so wordy but im looking for a minor change not a complete overhaul 5 color madness.