Firebending 2 on a 1-drop is dangerous, though it requires that you bin a lesson to really matter
Combo decks These can play 2 speeds, and this is often something that revolves around artifacts
While there are some solid options in white, as well as some options for Izzet, heavy green has the most appeal to me, with the most solid support for counters as a theme
Any time you have priority, you can turn a face-down permanent with negamorph face up by paying its negamorph cost
However, it does so during the combat phase, giving you the ability to cast sorcery-speed spells during the second main phase
Of course, most decks overloaded with one-drops don't play many five-drops or enough lands to cast five-drops with regularity, so everything isn't perfect in Obosh's world, but if either of the odd /even companions shows up in a competition deck, my money is on Obosh, the Preypiercer