The core reason that Meren is such a stellar graveyard commander is its ability to return creatures from the graveyard to play with ease each turn
2 - Electro, Assaulting Battery Another mono Red option, Electro, Assaulting Battery could be ideal for spellslinger decks since it stores red mana, then adds red mana as you play instants and sorceries
Both created interesting situations where opposing players could potentially get themselves into a lot of trouble if they cast a spell and opened up the opportunity for their opponents to counter it
For one, theres no equivalent to MTGs mana used for summoning cards you simply choose one of the three houses that make up your deck each turn, which lets you play as many cards from that faction as you like that round, so youll never spend a turn twiddling your thumbs unable to do anything
Maybe you search yugioh cards and click the second link the official Yu-Gi-Oh
Not only does it create Zombies, but the more you have, the more you scry to find what you need, while also draining the opponent for even more inevitability