The Bad There are two things that I'd deem as "bad" about this deck, and they're both matchup-driven against decks with some kind of Mountains
Creature - Elf Druid Color tag templates(None) Felidar Sovereign Vigilance (Attacking doesn't cause this creature to tap.) Lifelink (Damage dealt by this creature also causes you to gain that much life.) At the beginning of your upkeep, if you have 40 or more life, you win the game
Note that you get counters put on the attacking creature, not an until end of turn pumping
The first legendary Greyjoy I chose for the set was Euron Greyjoy, the most brutal and bloodthirsty Greyjoy we saw in the show is more than deserving of granting his controller a second battle phase so the vehicles under their control can attack again
Its great recursion from the command zone for some of our best Vampires, like Blood Artist, Vito, Thorn of the Dusk Rose, and Cruel Celebrant
It doesn't matter then you enchanted an artifact with Ensoul Artifact, it matter how long and continuous you control it