Each offers a potent combination of board presence, card advantage, and tactical flexibility wrapped in an excellent package
A lot of the time Xorn reads double your Treasures, which can turn into a lot of mana very quickly and/or make for nice interactions with artifacts matter cards and the like
Dalakos gives an added benefit to whatever creatures you decide to build up by supplying equipped creatures you control with flying and haste
You see, At the beginning of each players upkeep, that player can put an Artifact, Creature, or Land card from their hand into play
Reclaiming Vines was Todd Andersons suggestion for the mirror match because it destroys Westvale Abbey and Cryptolith Rite, both of which are important
You can get wild with these brews and push the limits of your playgroup plus, these cards come in packs with white-bordered cards, and I think that is kind of amazing