6 Myrel, Shield Of Argive - Mythic Rare $17.45 You might be looking to pick up a Myrel, Shield of Argive for a Soldier-based Commander deck, and if thats the case, youre looking at one of the more expensive cards from The Brothers War
But if youre putting Rancor on a Loxodon Smiter or a Sublime Archangel or something, youre getting much less relative impact from it
They not only ramp you in up to three colours, they also have the exalted keyword, making your creatures an itty bit more effective when they attack alone.
The tokens that Deeproot Waters creates possess hexproof, making them much harder for you opponents to deal with, especially if you were to buff these tokens with the abilities of your other merfolk
WILL OF THE ABZAN Still in Tarkir Dragonstorm Commander for a moment, I want you to read Will of the Abzan once again