Murkfiend Liege buffs our creatures while at the same time is has great tap/untap synergy as it let us untap all green and/or blue creatures we control during each other players untap step
You'll find the backstory on Dungeons & Dragons: Adventures in the Forgotten Realms (AFR) products in this article
Really powerful
Then, anytime you gain life, you can pay either a white or a green mana
Apart from the issue of some cards not having playable substitutes, the other reason I tend to dislike this advice is that part of what makes formats like Commander fun is the diversity that they offer, and this diversity is built, in part, on players being able to access and play with weird, old, nostalgic cards that don't really see play in other formats
Wrap Up Phlage, Titan of Fire's Fury | Illustration by Lucas Graciano Whether you're building your first Modern deck or fine-tuning a tournament-ready list, these staples are essential to keep in mindboth for brewing new ideas and preparing for what youll face in the wide Modern metagame