>>55515165I've got Roguelocke clears for both Secret Garden and Guildmaster Trail (i haven't bothered with Sickly Hollow yet)
I recommend playing safe always. One strategy you can use is L shapes: if a pokemon has Line of Sight moves, move out of its line of sight by one tile and it cant attack you. you can just keep doing this until it comes close enough to own it.
My personal strat for both dungeon clears (40F on SG btw :v) ) was to use Harvest Tropius. I'd use growth to boost up my offenses (no. of growths depends on how deep i am and my supplies). I'd recruit a Eevee->Vaporeon for Aqua Ring (super broken move in PMDO, for 10 turns you heal 1/8th your max hp every turn. This buff is given to anyone next to the user). It also gets refresh while it's an eevee to cure status, helping hand as a quicker way to boost offenses and also not use trop's growth PP, and quick attack for repositioning. if you get a dig TM that's good to pussy foot around with on vap. In GT my other mons were a murkrow for offense and a claydol for support (cosmic power is a group buff).
Thanks to Harvest, any berries Tropius eats are shared with any ally nearby, so PP is nearly as tight as leppa berries become a full party PP heal, which allowed me to fuel the strat of just buffing tropius with growht, helping hand, aqua ring, cosmic power, etc. Really good ability.
Other people use things like EQ/Heatwave Torterra/Charizard, and I think one guy recently had a Floor 40 clear in SG using Rage Salamence, though i didnt watch his run. There is a video of his run on the leaderboard, you could probably get even more ideas there.
My number 1 suggestion though is definitely just always play really safe. Don't take any unneeded risks if you're past first third of the dungeon, especially if it looks like you actually have a run on your hands.