Rulings
Q1: What does this card's On Play When Digivolving effect do, exactly?
You choose 1 of your Digimon for every 2 colors your Tamers have. The target Digimon aren't affected by your opponent's Digimon's effects until their turn ends.
Q2: What does "none of your ... Digimon are affected by your opponent's Digimon's effects" mean, exactly?
This effect prevents Digimon from being affected by effects. For example, your Digmon won't suspend if it's chosen for a "suspend 1 of your opponent's Digimon" effect, and its DP won't be reduced by 3000 if it's chosen for a "1 of your opponent's Digimon gets -3000 DP."
Q3: Can a card that has an "isn't affected by ... effects" effect be chosen for an effect?
Yes, it can be chosen. For example, a Digmon that isn't affected by effects can be chosen for a "suspend 1 of your opponent's Digimon" effect.
Q4: Can a card that has an "isn't affected by ... effects" effect be given an effect?
Yes, it can. It won't be affected by it, but it can be given an effect. However, if an effect such as Security Attack is given to a Digimon that isn't affected by effects, the Digimon won't be considered to have that effect.
Data Sources
Lv.6 WarGreymon ACE ST20-11 SR Mega | Vaccine | Dragonkin/ADVENTURE/Hero [Digivolve] Lv.5 w/[ADVENTURE]/[Hero] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (Your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Until your opponent's turn ends, for every 2 colors your Tamers have, their Digimon's effects don't affect 1 of your Digimon. [When Digivolving] [When Attacking] Delete 1 of your opponent's lowest DP Digimon. --- Inherited: <Overflow (-4)> (As this card moves from the field or under a card to an area other than those, lose 4 memory.)
Lv.6 WarGreymon ACE ST20-11 SR Mega | Vaccine | Dragonkin/ADVENTURE/Hero [Digivolve] Lv.5 w/[ADVENTURE]/[Hero] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (Your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Until your opponent's turn ends, for every 2 colors your Tamers have, their Digimon's effects don't affect 1 of your Digimon. [When Digivolving] [When Attacking] Delete 1 of your opponent's lowest DP Digimon. --- Inherited: <Overflow (-4)> (As this card moves from the field or under a card to an area other than those, lose 4 memory.)
Lv.6 WarGreymon ACE ST20-11 SR Mega | Vaccine | Dragonkin/ADVENTURE/Hero [Digivolve] Lv.5 w/[ADVENTURE]/[Hero] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (One of your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Until your opponent's turn ends, for every 2 colors your Tamers have, their Digimon's effects don't affect 1 of your Digimon. [When Digivolving] [When Attacking] Delete 1 of your opponent's lowest DP Digimon. --- Inherited: <Overflow (-4)> (As this card moves from the battle area or under a card to another area, lose 4 memory.)