Going wide is a good plan against decks with a lot of spot removal and not a lot of mass removal, and decks like Mono-Green Aggro dont actually play removal, which can let your synergies work unopposed
Except when you dont
Designer Notes: Build up an army of zombies and use your commander to sacrifice them for value
Myriad lets you triple up on the action each combat step, netting additional triggers of any relevant ETBs from the creature you copied
Theres a few cards out there that also care about when counters are put on permanents you control
P/T Number 295 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (1/24/2025) If you haven't gained life during the turn when your end step begins, Restless Bloodseeker's ability (and similarly, Bloodsoaked Reveler's ability) won't trigger at all