Blue/Green Nissa Legacy Deck Tuning

RhysMarkov

So here's what I've got that seems to be working pretty well. I'm open to suggestions on how to make it more heinous haha:

Ulvenwald Hydra
Mizzium Meddler
Channeler Initiate
Dissenter's Deliverance
Ambuscade
Winds Of Rebuke
Hour Of Promise
Zendikar Resurgent
Part The Waterveil
Sphinx's Tutelage

As you can tell, the deck is less about cycling and more about spamming the synergy between Waterveil, Resurgent, the Hydra and Hour of Promise. The Meddler I'm enjoying because of his toughness and the constant matches from the other stuff, and Ambuscade is just great, cheap removal (most of the time). The Sphinx's Tutelage is the last thing added, and I'm not completely sold on it, but I've seen it stall the AI out after a decent combo, so there's that. 

What do you guys think? I'm definitely open to suggestions. I'd really like a "when creature comes into play, x thing happens" mechanic in there, but it doesn't look like I have anything in blue or green at the moment that really adds to the crazy.