Bo1 ETB Lifegain Swarm (Made in MTGA) (Historic)

So this deck is pretty wild (ya might want some tokens or a way to keep track if playing this irl just an fyi).

(Despite what the site says, this deck is currently Historic Legal, at least on MTGA)

The way this deck runs is super simple, you've got your life gain through ETB through Soul Warden, Hallowed Priest, and Impassioned Orator which you're mainly going to be triggering with Scute Swarm.

Now the next thing you wanna keep in mind is that we are running mutate, and although we have quite a few humans in our deck, we should almost always be able to trigger the mutate. You can also mutate onto your Toski since doing so will counter most removal spells. He also lets you draw whenever a creature deals combat damage, which can be super useful when it comes to draw power. Speaking of, we also have Dawn of hope for a tad bit more draw power since we can trigger it through ETB effects by copying Scute Swarm.

Finally we round the deck off with a copy of Elspeth Resplendent. This card will keep you alive in some pretty niche situations, as well as let you just go full blown aggro. Valkryie Harbinger was mostly just a fill card for this deck, but do not underestimate it. It will stack the board with flyers fairly quick once its out.

And last, but not least, I splashed in a few protection spells to protect those wombo combos