Grave Tidings (EDH / Commander) [Revision 43]

Ikoria Commander pre-con 'Enhanced Evolution' based with a fresh commander and focused purpose. 'Muldrotha, the Gravetide' unlocks the graveyard for all permanents, not just your mutations. Cost effective, utility permanents augment ramp and removal in place of sorceries and instants to allow for continued re-use. Mutation is actually great in a supporting role - think if it as pumped up aura's that can walk on their own in a pinch. Mutations retained bring a flourish of utility going on top of 0/0, counter-based creatures, adding some combo of flying, trample, counters, tokens and/or removal, plus a nice pump for between 3-6 mana.

Key pieces include 'Gravebreaker Lamia' who tutors to your graveyard coming into play and reduces casting costs from the graveyard by 1. 'Mazirek, Kraul Death Priest' should be your first target, giving +1/+1 to all your creatures each time anyone sacrifices anything which synergizes perfectly with re-using your utility permanents and fetch lands. 'Master Biomancer' grants counters to all creatures entering under your control - consider mutating it to pump it's free gift. 'Jarad, Golgari Lich Lord' allows you to sacrifice creatures, making a reusable artillery of your pumped creatures. 'Iridescent Hornbeetle' is a ticking timebomb, releasing tokens for counter created and 'The Ozolith' preserves counters, amassing them to be re-used again. Early game, 'Sakura-Tribe Elder' self-sacrifices to bring land advantage, which can be repeated each turn and 'World Shaper' can fill your graveyard with casting options.

Your scant remaining instants are game breakers. 'Crop Rotation' looks out of place but as an instant pulling any land, can provide some interesting utility. Use it early to fix mana or save it to pull a surprise 'Glacial Chasm', absorbing an attack for free, keeping your counter-attack at full-strength. 'Inspiring Call' is both an offensive and defensive bomb in this deck. 'Mystic Genesis' can provide both an unexpected counter at a key-moment and a new threat (or two if 'Doubling Season' is in play) on the board as well.