Archaeomancers Map single-handedly put white back on the map, and Losheel, while limited to once per turn (ugh), shows a willingness to put multiple forms of card advantage on one cheaper creature
Unholy Heat Unholy Heat is an interesting case: As long as you can fulfill its delirium clause, this red instant deals so much direct damage that it's basically unconditional removal something that red doesn't usually have access to, and which makes Unholy Heat a bit of a color pie break
Station (Tap another creature you control: Put charge counters equal to its power on this Planet
I don't even think you really need synergy cards to make it worthwhile including
Meanwhile, Xyris creates 1/1 snakes when an opponent draws , and with access to green, we can use Jaheira, Friend of the Forest to generate vast amounts of mana for our wheel spells, creating even more snakes in the process