The universal dilemma of the Infiltrator was that few decks that played it wanted to tap out to get him there, but sticking him on the board was so devastating that most opponents would consider themselves fortunate to spend that window of opportunity making him go away as trying to race him with a traditional three- or four-drop was pure folly and playing your own blocker, including your own Shadowmage or something a little bulkier risked a removal spell that would lead into a downward spiral of card disadvantage
Nissa, Vital Force, Kalonian Hydra, Wolfir Silverheart, and even Whisperwood Elemental are all decent options in the deep deep five slot
And, like Vampires, Pirates have some fun in-theme combos, including the slightly-delayed win with Brass's BountyBrass's Bounty + Revel in RichesRevel in Riches: This damage-based winning combo is also super cool and Piratey: 8
You still want to get in as much combat damage in the early game as you can, even if your opponent will eventually put together too many large blockers for you to clear away
Its an instant, and unless youre the unfortunate victim of a Tormods Crypt, youll be happy
And we're including this Earth's Mightiest Emblem as Arcane Signet, depicting the Avengers Tower