Dark Double Tuning

Dark Double Tuning is an alternate version of Double Tuning in which a non-Tuner is combined with 2 Dark Tuner Monsters for a Dark Synchro Summon. In Dark Double Tuning, the Levels of the Dark Tuner Monsters are combined, then the total is subtracted from the Level of the non-Tuner monster. What makes this easier than it seems is that the combined Levels of the Dark Tuner Monsters are able to exceed 12.

Example: 1 Level 5 non-Tuner monster - (1 Level 6 Dark Tuner Monster + 1 Level 8 Dark Tuner Monster) = 5 - 14 = a Level -9 Dark Synchro Monster

Monsters that use Dark Double Tuning:
 * Evil Synchro - Vylon Omega