The infect strategy, while not having direct support since Phyrexia: All Will Be One, has still been improved thanks to additional cards that care about counters
Classic Monster Manual-Style Art Beholders, owlbears, gelatinous cubes, and even the dreaded Tarrasque - collect Rulebook cards featuring the most beloved and feared monsters in Dungeons & Dragons with special alternate-art drawn in the style of classic D&D monster manuals
You pay 4 additional mana to exile the first creature (or creature card), and exiling more on top of that is a trivial cost
They help you power out if not speeding up the combo specifically
Imps Mischief is cute, but Ashnods Intervention will do most of what it usually does for pennies
This is key as whenever Grolnok's controller mills permanent cards, those cards are exiled with croak counters on them