anthem cards mtg of Spring - Dusk Til Dawn - Flesh & Blood TCG return up to X target creature cards from your graveyard to the battlefield Anthem of Champions [Foundations Prerelease

Marneus is an excellent payoff for the multitude of cards in Esper that generates tokens, including Nadir KrakenNadir Kraken (it's a combo!), Lotho, Corrupt ShirriffLotho, Corrupt Shirriff, and Smothering TitheSmothering Tithe

That being said, this is still a creature you're happy to play even if you suspect your opponent might have a board wipe in hand and there aren't many creatures that can say the same

They only become better and better when you have multiple lands that are worth searching out from the 99

There are lots of other tactics we could discuss, like choosing Lily discards, prioritizing enemy threats, selecting cards from Tasigur activations, etc., but these three tips above are a great starting point to get you thinking about beating Abzan