Greymon - EX4-044 (EX4-044) - Alternative Being Booster

[When Digivolving] 1 of your other Digimon may digivolve into a level 6 or lower Digimon card with [Garurumon] in its name in your hand for the digivolution cost. When that Digimon would digivolve by this effect, reduce the digivolution cost by 2.

[Reboot] (Unsuspend this Digimon during your opponent's unsuspend phase.)