Frosth’s special attack specifies that he can boost A minions attack and hp up to 200%, but considering that a hero can only have up to 3 minions how could a minion be boosted more than twice before the minion would be replaced by another new frosth minion?
This was patched up only due to his interaction with seshat. Before that, with frosth’s help, he can increase the hp of seshat’s replicating minions in an infinite loop, reaching ridiculous amounts of hp
You can read how insane the hp got to in this thread
Oh dang, ok! Thanks! I’d been wondering about that!