Yes, sure, it can go into any green deck and start putting counters on things, but to get the real synergies with this going, you need to be in a dedicated +1/+1 Counters deck
Avenger of Zendikar is far weaker in this role as you have few lands early when it is best to cheat big things in, the plants don't fly nor can you pump them up to being relevant without the Avenger itself in play.Basically, if you want lots of things, if you don't want to die to attacks, play this
Check out this recent video from Tomer on the MTG Goldfish Commander channelto hear about this crzy new combo Finally, we have Gleemax
It changes only the total cost you pay to cast spells
Sidisis less about immediate strength, and more about strategy