When an Alliance Digimon attacks, you can suspend another of your Digimon to add its DP to the attacker and tack on Security A. +1 for that attack. One swing carries two bodies' worth of stats plus an extra check. The suspended Digimon is exposed afterward, so save it for the turn you're actually closing, not for chip damage.
As printed on cards
Alliance (When this Digimon attacks, by suspending 1 of your other Digimon, add the suspended Digimon's DP to this Digimon and it gains ＜Security A. +1＞ for the attack.)
16-24-1. <Alliance> is a keyword effect. When a Digimon with this effect attacks, by suspending 1 of your other Digimon, add the suspended Digimon's DP to the attacking Digimon and it gains <Security A. +1> for the attack. 16-24-2. <Alliance> is a trigger-type effect that triggers when a Digimon with this effect attacks. (For details, refer to 15-8-3 "Trigger-Type Effects") 16-24-3. "By suspending 1 of your other Digimon" in <Alliance> is an optional processing condition. If the content of that condition is executed, the processing for "when a Digimon with this effect attacks, by suspending 1 of your other Digimon, add the suspended Digimon's DP to the attacking Digimon and it gains <Security A. +1> for the attack" will be mandatory.
Comprehensive Rules §16-24 — official rules page
From Bandai's card rulings. Each links to the card it was asked about.
Can I choose different Digimon for the Digimon that gains ＜Alliance＞ and the Digimon that attacks for this card's ＜Your Turn＞ effect?
Yes, you can.
Ruled Apr 4, 2025 · asked about MetalGreymon (BT21-061)
Can I choose different Digimon for the Digimon that gains ＜Alliance＞ and the Digimon that attacks for this card's ＜Your Turn＞ effect?
Yes, you can.
Ruled Apr 4, 2025 · asked about Angewomon (ST20-06)
Can I choose different Digimon for the Digimon that gains ＜Alliance＞ and the Digimon that attacks for this card's ＜Your Turn＞ effect?
Yes, you can.
Ruled Apr 4, 2025 · asked about WereGarurumon (BT21-078)
After my Digimon gains ＜Alliance＞ with this card's ＜Your Turn＞ effect, can I choose to not attack for the part of the effect after "then"?
Yes, you can.
Ruled Apr 4, 2025 · asked about WereGarurumon (BT21-078)
After my Digimon gains ＜Alliance＞ with this card's ＜Your Turn＞ effect, can I choose to not attack for the part of the effect after "then"?
Yes, you can.
Ruled Apr 4, 2025 · asked about MetalGreymon (BT21-061)
After my Digimon gains ＜Alliance＞ with this card's ＜Your Turn＞ effect, can I choose to not attack for the part of the effect after "then"?
Yes, you can.
Ruled Apr 4, 2025 · asked about Garudamon (ST20-04)
Can I choose different Digimon for the Digimon that gains ＜Alliance＞ and the Digimon that attacks for this card's ＜Your Turn＞ effect?
Yes, you can.
Ruled Apr 4, 2025 · asked about Garudamon (ST20-04)
After my Digimon gains ＜Alliance＞ with this card's ＜Your Turn＞ effect, can I choose to not attack for the part of the effect after "then"?
Yes, you can.
Ruled Apr 4, 2025 · asked about Angewomon (ST20-06)
Public lines whose key cards carry this keyword, step by step.
88 cards carry this keyword; the first 30:
Rule text © Bandai, quoted from the official Comprehensive Rules for reference. Combalo is not affiliated with Bandai.
