Have you considered Savage Summoning? Its great to way to surprise your opponent on their end step and they can't do anything about it. It does everything you'd want to keep your fatties on the board, plus it gives you a +1/+1 counter on top of it all for 1.

Maybe add two savage summoning in place of a bioshift and a solidarity of heroes?

TigerAce77 thanks for your suggestion! Savage Summoning is a good card for sure.

• 1 love playing hydras here is my deck Surrak and his Hydra Army (Huge Hydras + Trample)

what about Forced Adaptation? its pretty cheap for what it does, and putting it on a kalonian can get very out of control

AvacynAngelofHope thank you for your suggestion, Forced Adaptation is a good card but kinda slow for my deck, i usually double the number of counters on my creatures, so i don't know