Invasion's expansion symbol is the symbol of the coalition, a cooperative effort of Dominarian forces from all five colors banded together to oppose Yawgmoth and the Phyrexians
Rushing out the Snake-Eyes Flaberge Dragon is the key to any deck in this archetype, and Snake-Eyes Poplars Spell/Trap draw effect should make this a lot easier
Even without other synergies, hes somewhat broken mechanically: bare minimum, Vivis ability should have been a tap ability to begin with
If your opponent can only win through a card like Farewell, and you have redundant lock pieces in your hand, hold onto them rather than playing them out
(Credits to LazyLooters for helping with the 3D models and their textures) Great news
I went through the Premodern card list, and Verdant Force really is the best thing you can get