Hmm.. a 1/1 for GG that when it dies, you lose a card and get two 1/1s?
If you look at the Symbiotics from Onslaught, they're all roughly costed at about

more than the creature alone, and you get N 1/1 tokens when it dies, where N is the creature's initial P/T.

more than

is just under

for which you should get a 1/1 with no abilties. So, for comparison:
Not Jeek's Toadstool

Creature - Plant
When Not Jeek's Toadstool is put into a graveyard from play, put a 1/1 green Fungus token into play.
1/1
So if you discard a card, you get an extra 1/1 token? At one card being worth roughly two mana, and two mana usually gets you more than just a 1/1, isn't that a bit low? Maybe give the base creature and the tokens some ability, even if it's "Sacrifice this creature: Regenerate target creature."