Update: 4/16/2020 - I have durdled around with so many decks in D2 this month ... maybe I should just be the guy that plays Even Paladins, because it seems to work for me. It feels pretty meta-dependant, though; I think it may be in a good space this week.
3/21/2020 - Finished my trek into Masters today with another 5 game win streak. Deck is still a ton of fun.
If you want to flex cards out, try Siraf or Avigraft or Purgedriver or even go down to 3x Svetya.
I went ahead and added an entire sideboard, but here are some cards I've tried at various points.
In the 2-cost slot:
Copperhall Porter (more ramp, better starting hands, early blocker)
Lay Siege (doesn't help vs the non-damage board wipes, sadly)
Reweave (esp. if you run Loyalist)
Steadfast Paladin (if you want to be more aggro)
Eloz's Elite (just for the butt)
Lost Scroll (more ramp)
Auric Runehammer (control / hit the opp. in the face)
Imperial Loyalist (pledge, nice on its own, especially good with Reweave)
Inquisitor's Blade (we can get jammed up on the ground a lot)
Minotaur Platemaker (up to 4x)
Reclaim (no more than 2x)
Nivia, Most Devoted (decent body, I have NEVER hit her mastery)
Regent's Tomb (can be nice to Sabotage the board wipe on t4, doesn't do much to keep itself alive though)
Relentless Deadshot (you buff this thing up, you can fit so much stun in there)
Sheriff Marley (aegis is always nice, sometimes you get the silence, making more aegis units rocks later)
3/19/2020 edit - Nowhere as near good as it was, but still fun! Had a 5-game win streak today in D1. Lots of flex spots. Avigraft is both at it's best and worst right now; kills the big ground minions, dies to all the relic removal. Play with caution.
Original Posting Below --
This has been my pet deck the last couple months. I beat PChapin with it last month, which was awesome, and this month used it exclusively from Gold 1 all the way to Masters. I hit Masters at ranked 10 and had a 16-4 win rate in my last 20 matches.
The combination of life gain and aegis keeps you in the running until you can start slamming Svetya. Then it is often (but not always) GG.
Any deck that runs 4x Evenhanded Golem and 4x Svetya will always have my heart. If that sounds fun to you, you should try it out too.