Yeah, go ahead.
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This is a nasty deck. The only critique is the name, lol. "Invincible Infect" may not be the right word. Perhaps "Unstoppable" as your going for getting the infect through with trample and making it so opponents can't block rather than making them indestructible.
I think that with the focus of creating tokens, and triggers for creatures dying, Teysa Karlov would make a good addition to the deck. Only being a 4 drop also fits within the decks' mana range.