I was looking for a "budget" Bogles deck and this seems great!(even without the Horizon Canopys, which are good but not indispensable)Thoughts about replacing 2x Keen Senses with 2x Spirit Mantles? It provides some great evasion. The only real nemesis for Bogles is Spellskite, so maybe sideboard some artifact hate like Qasali Pridemage and Naturalize+1

I think you may be right, though I am a little hesitant to up the CMC from 1 to 2. The deck's real advantage is cycling through cards so quickly, and the Keen Senses can make a very big difference in turns 2-4, especially game 1. They get boarded out pretty quickly, though, so if I'm cutting anything it's them. I'll do some playtesting though, thanks for the suggestion!

I run at least two Suppression Fields because everyone in modern is running fetches. You know whats hilarious? Seeing someone who can't afford to activate their t2 fetchland. It means not running fetchlands myself, but it is such a consistent lockdown, that I run 3 suppression fields mainboard.

You could put in some totem armor cards such as hyena umbra and felidar umbra to protect against board wipes that get around hexproof and as a creature you could put in invisible stalker because he is not just hexproof but also unblockable so you can make sure to get damage in

Been playing bogles for about two years and I have to say, I would absolutely always rather have a forest than a Sunpetal Grove. If you have the money to do it I would also replace all 4 plains with Razorverge Thicket, it's by far the best land the deck can run except for Horizon Canopy since the whole combo hinges on the first three turns and add some Wooded Foothills, Dryad Arbor is only good in the deck if you can fetch it to counter sac effects like Liliana of the Veil. The lands are by far the most important thing in the deck because you can have all the pieces to fire off in your hand but you absolutely need a land that gives you green on turn one to make sure your hexproof creature can't be countered. Speaking of the lands and having green T1 I'd drop an Unflinching Courage for another land that gives you green turn 1. the 21 land choice is a small one but since you rarely want to be casting Unflinching Courage since it's 3 mana anyway I think it's better as a two of to make your turns 1-3 more consistent.