If this was a Golgari commander with access to green cards, Id suggest a bunch of deathtouchy rats and some bite spells, but Ive learned to stop when I feel Im stretching
Another key part of the deck is Ashnod's Altar, which allows you to sacrifice creatures at instant speed to add two colorless mana
Honorable Mentions: Non-EDH Otters First, lets talk about Lutri, the Spellchaser
Lifelink is still incredibly powerful when a format is dominated by red, and I expect to see Legions Landing show up in many different decks in Standard, maybe even paired with Crested Sunmare
Additionally, in a multiplayer format, you can give a gift to an opponent while the effect of your card punishes another, so you often get the full value of the card with little to no drawback
If youre short on lands, youll lose tempo when you cant pay the mana cost for your spells