This deck is built to abuse Simic's evolve mechanic from Gatecrash/Dragon's Maze. Its creatures can get big surprisingly quickly, to the point that swinging for lethal damage on turn 4 is possible if the deck curves out properly. The goal of the deck, however, is to be able to apply early pressure while also having a big late game.
The deck features several interactions that help it win games. For instance, flashing in a Restoration Angel at the right time can make evolve creatures grow significantly (allowing you to hit your opponent for a good deal more than they expected). I also like using Zameck Guildmage to remove +1/+1 counters from Renegade Krasis, making it small enough for its evolve to keep triggering.
The deck is quite capable of surviving against aggro, especially after sideboarding. Unless you have a hand that allows you to curve out (generally Experiment One into Gyre Sage into Renegade Krasis into Master Biomancer or Restoration Angel), the deck has enough creatures to be able to block the aggro deck's creatures (even if not profitably), allowing you to stay alive long enough for your bigger spells (where the deck can run somewhat like Bant Control).
Control matchups are also quite winnable, as the majority of the deck's spells are creatures that can become uncounterable with Cavern of Souls (and there are enough creatures that even without Cavern, some will resolve regardless). Generally, I find it's best to name Wizard with the first Cavern, followed by Beast or Angel, depending on the situation or your hand. The large number of creatures in the deck allows you to keep applying pressure against control decks, while Angel of Serenity provides a big late game by continually bringing creatures back from your graveyard.
Creature-heavy midrange decks can present a problem, but Supreme Verdict can quickly even the board. And because of the way this deck is built, it's possible to both be significantly faster than midrange decks while also having a bigger late game (since, ideally, our creatures will be bigger than theirs).
I've been testing and tweaking this deck quite a bit on Magic Online, and any suggestions are welcome.
