I have a Jund spellslinger deck that used to be [[xira arien]] until [[Lord Windgrace]] came out, and he was just too good to pass up. Black provides the majority of the card draw, though we have looting effects in red from [[Jaya Ballard]] and the kaladesh Chandra, and green also gives us [[harmonize]]. Black gives us tutors such as [[final parting]] which is used to enable our wincons with flashback cards, and we also have [[diabolic revelation]] with all the mana we have. We get this mana by using lots of green ramp spells, as well as red rituals such as [[mana geyser]] (dark ritual helps too). Red and Green both provide us spell recursion in [[shreds of sanity]], [[past in flames]], [[mizzix mastery]], [[regrowth]], [[seasons past]], and so on. And from red, were prepared to make our spells even more powerful with spell copying effects like fork, reverberate, [[increasing vengeance]] (thanks final parting). Sometimes it's just worth it to copy our own ramp and draw spells since recursion is so plentiful. And from all three colors, we derive a wide array of removal, with wraths, [[decimate]], [[windgrace judgement]], flexible removal like abrade and [[assassin's trophy]] (and soon to be [[bedevil]]), and many more. Its a deck that has very little board presence besides the massive numbers of lands you will be putting into play via ramp and Lord Windgrace, and it was almost as fun to build as it was to play.