This deck really wants low cmc ramp to deploy Wyleth and suit him up as quickly as possible, which would require good 1-2cmc ramp options to pull off, but unfortunately most low cmc ramp options are expensive these days and the cheaper 3+cmc ramp they could've added just don't do much when Wyleth himself wants to be cast on turn 3 or earlier
Lilith Lady of Lament Similar to how Traptrix decks revolve around the Hole trap card archetype, Lilith the Lady of Lament supports Virus trap card decks
Dark artwork, aggressive pose, heavy holo bleed on early printings it stood out then, and it still does now
The Threat Evolves Counterfeiters are moving beyond cheap proxies
Of course, those do all require a creature already in play
You can soft-lock players with cards like Meren of Clan Nel Toth, Abiding Grace, and Tortured Existence to prevent anybody else from having a meaningful combat step