Can we see the decklist?
Seeing that you play cards like Eyes in the Sky grants some leeway in regards to what is playable, I guess - which helps me as I'm a primarily casual player.
If you are facing down damage (For example,
Pyroclasm), things like
Safe Passage might help. Depending on what you're using green for,
Brave the Elements will both save your creatures and give reach if (when!) your opponent has built up defenses.
Reverent Mantra might however be relevant as it saves all of your creatures regardless of color, but it is very expensive even if it is castable with no mana.
If your issue is stuff like
Day of Judgment, I actually can't help you through card selection - the key to playing against mass removal as a swarm-y deck is not to use up all your resources and hold back a little bit as
they will inevidently play a card that wipes the board. You must both keep enough pressure to overcome their defense on the board while having enough in reserve to finish them if they push the red button.
If your issue is stuff like
Curse of Death's Hold, it's more problematic - this is a concrete hoser towards the token strategy and must be dealt with through playing cards you should already play, such as
Intangible Virtue,
Gaia's Anthem etc. that boost your creatures to begin with.
Leyline of Sanctity will end you.
On Unruly Mob: He is meant for a token deck, but personally, I think he'd make more sense in a white-black shell where your creatures are supposed to die, if not willingly. With that you also get access to power like
Lingering Souls,
Altar's Reap (not that strong I admit, but a personal favorite) and
Grave Pact. Again, willingly sacrificing your own stuff is funny! Perhaps just to me.
Also, Unruly Mob dies to Pyroclasm badly.
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