I will be swapping 2 plains and 1 swamp for 3 Brightclimb Pathway once Zendikar Rising is released.

if you wanna make it more competitive, a card that i think would be good but not like oppressive for a casual environment might be Aether Vial. since you have effects like Kabira Evangel, dropping a creature on your opponents turn to protect from removal would be really good. and since you're mostly 2 drops it could work really well, but foil aether vials sounds like a nightmare to get a hold of.

you might also consider going into a third color since you have ally encampment. if you add Unclaimed Territory you'll have 8 any color land, so you might be able to add some other good allies like Jwari Shapeshifter or Akoum Battlesinger.

Hope you have fun getting back into the game!

Thanks for suggestions. Aether Vial definitely seems like a great addition... I'll have to see what I can manage in trades to snag one. I ended up pulling the Seal out to main board one Phyrexian Arena. Debating pulling a Reanimate out of the main board. Maybe I can swap one of those for a Aether Vial if I get one. Thanks again for suggestions. Looking forward to getting back into the game!

I was able to get 2 foil Vials in a trade. So I'll be testing it out soon after the current changes. I'm trying to get another Phyrexian Arena into the main board, but don't know what to swap for it. Considering one Path, but I'll hold off for a bit more testing.

Made a few more minor changes. I removed Reanimate for Unearth and moved them into the SB as I was able to trade for another foil Arena and Vial.

Made a few changes to the sideboard with the release of Strixhaven. Also added a maybeboard for some cards I'm considering.