2 Wall of Vines
3 Novice Knight
3 Tetsuko Umezawa, Fugitive
2 Suspicious Bookcase
4 Wall of Mist
3 Grappling Sundew
2 Amaranthine Wall
4 Arcades, the Strategist

3 Seal Away
2 Syncopate
2 Essence Scatter
2 Cancel
2 Grow from the Ashes
1 Circuitous Route
1 Settle the Wreckage
2 Hieromancer's Cage

7 Plains
8 Island
7 Forest

I saw someone mention a deck built around Arcades in the Arena subreddit so I decided to roll my own. Haven't crafted it yet (missing some cards here and there), so this is theoretical for now. Any ideas / suggestions?

This deck will never work. First you need to draw Arcades, second it needs to stay on the board or the entire deck fails to function. You can't count on either happening. The deck might work if we had another Arcades equivalent - say Doran, the Siege Tower or Assault Formation - but as it is I'd just scrap the idea and do something else.

Yeah, it's an all in strategy that becomes worthless with a single removal spell.

Should've mentioned that I don't expect it to do "well". The point is to have some janky fun. Valid point that I need more stuff to get Arcades out of the deck, however.

Maybe put a couple of Curator's Ward in there, or Shalai.