Next, you need some great creatures to attach these runes to
Seeker of the Way is very hard to race and serves as the perfect two-drop for the deck
Its indestructible and you only need to keep playing more creatures once it hits the battlefield, which youre probably going to do anyway
They have First Strike and protection, Reach and Vigilance, Firebreathing and Flying, Horsemanship and exiling, Banding and Flanking, Double Strike and Shadow, Provoke and landwalking, Trample and Haste, Unblockability and Regeneration, even Lifelink
Alternatively, you can enchant your Voltron creature with Phyresis or Glistening Oil to give them infect to make it even easier to take them out of the game