If you have no bombs and no good synergies, that’s when you drop and then go home and get drunk.
Oh, I'm talking Arena.
This time around, I went Gruul (since the other one that is +1/+1 counters, Plains/Forests? Guild??? was full) and built a Island, Mountain, Forest deck. 1 Island, 3 Mountains, 3 Forests, 1 Guild Gate that was Island/Plains, 2 of Mountain, Forests and did a bit better than last time. But I got completely ate alive by the last 2 opponents I faced when they had like 5/5 flyers out of Island and it's like "where the fuck did you get these, and why the fuck didn't I get something similar?" The best I got was like a 1/1 flyer I was trying to get +1/+1 counters onto with the Enchantment to block countering creature spells (get fucked, Islands) that gives all non-token creatures Riot.
Speaking of which: I think that keyword is pretty weak in limited, at least in my experience. Maybe it's better if the luck is on your side, but I was either using Haste most rounds, or trying to get the +1/+1's stacked only to have bolts or exiles eat my creatures before I could lay my flyer up.
But the most fun I had was the first opponent I played. We both treason'd our creatures to bash against each other to win one round each, and I won the last one via time-out. So...

spoiler (click to show/hide)
Doesn't hurt that I have a crush on that dude.
