Been playing with this deck occassionally on the ladder, it's pretty fun and consistent if you play it correctly. The aim should be pretty obvious, rush the nissa ult with Ashaya and have everything you play become indestructible. The deck doesn't have much interaction, you're basically aiming to overwhelm the board with threats that opponents cannot deal with. The biggest threats will always be counters and exile, but since the deck is creature heavy it shouldn't be too hard to swarm the board multiple times. There are a few ways you can take the deck, you could take out the Garruk and add the Vivien to have access to the side board with her Ultimate or the other Vivien and keep making threats on board, the minus would help swarm as well, since there aren't too many cards with Reach this might be a good way to maintain an interaction. There is always the choice of running Primal Might to clear the board, with a Garruk Uprising since everything will have trample it can be an easier way to finish people off before they have a chance to react. I've played around with the lands, Symbiosis isn't always consistant but for the mana efficiency and for creating new threats it can be good, it could easily be taken out and have Bastion put in to proliferate, since with Henge and planeswalkers it is probably a better way to spend mana. Since Nissa doubles the mana and works well with Ashaya, the deck lacks a mana dump, I toyed with the idea of using Stonecoil or V. Hydra to dump the mana into, I didn't really want to change the deck around too much. I also don't own as many of the cards that I would of liked, I think the deck can be re-arranged easily to make use of what you have without having to craft any of them, since it isn't really a competitive deck but built more for fun. But I decided that I hadn't shared a deck for a while and I really liked the idea of having everything indestructible and it was an interaction that I haven't seen played in the normal queue at all.