It also helps that many of the summons (like Fenrir and Fat Chocobo) are just excellent creatures, so you can take those first and table stuff like Rydia
Since it's Simic (green/blue), you can easily ramp and get Vorel of the Hull Clade active early, so you can start taking advantage of it right away
Place the enlightened counter on the indestructible Avacyn, Angel of Hope so its more difficult to remove, or pop it onto a changeling land like Mutavault, where it'll keep you safe as long as the land sits in play
Oath of Druid: One of the most iconic cards in all of Magic, and the centerpiece of a deck, the 'Oath Deck.' Give your opponent a small creature, and then you can cast Griselbrand
This may not sound like an advantage at first, but many decks know how to use this effect cleverly
I hope this review was helpful