So i was thinking about going with 2 trygon primes to deep strike. Then with a shooty tyrant hive commander to get a large sum of hormagaunts to out flank. Some zoans and hive gaurd as my anti tank and transport from afar. and stealers infiltrating. the general strat is to use the stealers to soften them up while putting my anti transports into position to bust them down with 2 foot range slowing my enemy. Then turn 2 deep strike the trygons and a flock of grargoyals and the out flanking hormagaunts to get to the enemy. Lastly the tyrant and more hormies come running up the board to hit them for more pain. Thats just kind of an overview i have. I would go with termagaunts but gargoyals seem to lay more pressure on them all at once.