Q1: What does "X or more total colors" mean, exactly?
It refers to when a card has as many or more total colors than the number specified.
Lv.3 Agumon ST20-10 R Rookie | Vaccine | Reptile/ADVENTURE/Hero [Digivolve] Lv.2 w/[ADVENTURE]/[Hero] trait: Cost 0 [Your Turn] While your opponent has a Digimon with 10000 DP or more, or your Tamers have 3 or more total colors, this Digimon can digivolve into [WarGreymon] in the hand for a digivolution cost of 4, ignoring digivolution requirements. --- Inherited: <Reboot> (This Digimon also unsuspends in your opponent's unsuspend phase.)
Lv.3 Agumon ST20-10 R Rookie | Vaccine | Reptile/ADVENTURE/Hero [Digivolve] Lv.2 w/[ADVENTURE]/[Hero] trait: Cost 0 [Your Turn] While your opponent has a Digimon with 10000 DP or more, or your Tamers have 3 or more total colors, this Digimon can digivolve into [WarGreymon] in the hand for a digivolution cost of 4, ignoring digivolution requirements. --- Inherited: <Reboot> (This Digimon also unsuspends in your opponent's unsuspend phase.)
Lv.3 Agumon ST20-10 R Rookie | Vaccine | Reptile/ADVENTURE/Hero {{DigivolveFromTraitOr|0|2|ADVENTURE|Hero}} [Your Turn] While your opponent has a Digimon with 10000 DP or more, or your Tamers have 3 or more total colors, this Digimon can digivolve into [WarGreymon] in the hand for a digivolution cost of 4, ignoring digivolution requirements. --- Inherited: <Reboot>.