RG Marvel sideboard guide

UW flash:
-2 kozilek's return, -2 tormenting voice, -1 emrakul, -1 puzzleknot, -1 marvel, -1 chandra
+3 tireless tracker, +2 natural state, +2 tears of valakut, +1 world breaker

BG delerium:
-2 K return, -2 puzzleknot, -1 T voice, +3 tracker, chandra, nissa

mardu vehicles:
-2 emrakul, -2 T voice, +1 kozilek's return, +3 natural state

mirror:
-4 harnessed lightning, -2 tormenting, -2 return, +4 tracker, ulamog, chandra, nissa, world breaker

UR control:
-2 kozilek's return, -2 tormenting voice, -1 harnessed lightning, -1 puzzleknot, +4 tracker, +1 chandra, +1 world breaker

RG aggro energy:
-2 tormenting voice, +2 K return

RB aggro:
-2 emrakul, -2 tormenting voice, +3 natural state, +1 kozilek's return

Emerge:
leave as is

RUG Energy:
+3 tracker, -2 kozilek's return, -1 tormenting voice

UR fevered visions:
-2 kozilek's returns, -2 tormenting voice, -1 emrakul, +3 natural state, +1 world breaker
+1 chandra

UB Zombies:
-2 tormenting voice, -2 emrakul, +3 tracker, +1 world breaker

RB zombies:

-1 tormenting voice, +1 kozilek's return