Originally Posted by
FoulQ
Vindicate has been explored by Tacosnape in the thread. Playing vindicate, stp, vials, and potentially more is a lot of nongoblins, and there are things that can do what vindicate does on color. Asking for one splash color at a time (For example, wort, grip, etc.) isn't that difficult, but asking for black AND white can be difficult at times. The effect better be earth-shattering, and for me, Vindicate just doesn't get there. Vindicate + Weirding + StP is, in my opinion, too much removal for the deck, as well as too many nongoblins pre or post board. Plus you probably aren't going to be playing EE in that deck with so many nongoblins, and to me EE is one of the strongest factors towards a 3 color build, being as it rapes the 2cccentric meta.
The other card that has been suggested that is in two off-colors is Ray of Revelation, so I'll just get that out of the way right now. Suffers the same problems as vindicate in that it is too mana intensive for an effect that is already covered well enough by one color.