For all the rules about host and augment, check out the Unstable mechanics article
Unfortunately, decks with lots of removal can kill this before the first trigger (it dies to Doom Blade), but it can be the nail in the coffin against aggro decks
Prioritize cards that have these abilities to keep your opponent guessing your next move throughout the game
The Gestahlian Empire holds the world in an iron grip, its subjects living in fear and misery
Because of its quality removal and recursive threats, it can play an attrition game much better than other aggro decks, but theres an important caveat to that fact in order to play that attrition game, you need to get your Bloodsoaked Champions and Scrapheap Scroungers into combat
Might I suggest this card in a deck with a card like Camellia, the Seedmiser