mtg meren of clan nel toth commander deck [186] [Commander Anthology] [Foil] – Face to Face Games slip rubber backing to keep the playmat from shifting during use Updating Meren of Clan Nel-Toth

Also check out that type line: Zombie Dinosaur Beast

Pond Prophet offers a ton of value thanks to its "draw a card" ETB trigger

You may tap a creature you control to reduce that cost by an amount of generic mana equal to its power

As such, The Ruinous Powers stands far and above other decks of its color combination, due to its most excellent commander and mechanics

Obosh is probably better than Gyruda because Obosh allows all of the one-drops that an aggro deck would want and getting a wide board and dropping Obosh as your finisher is something that I could see working

Paying in installments is just another form of efficiency, and gives you some amount of flexibility but also some amount of political clout at the table