Guard lets you delete this Digimon to keep any of your other Digimon from leaving the battle area by an opponent's effect. Unlike Decoy it isn't limited to deletion, so it also eats bounce and return effects, which are usually the hardest removal to play around. Keep a Guard body standing next to your key stack and your opponent's interaction gets a lot worse.
As printed on cards
Guard (When any of your other Digimon would leave the battle area by your opponent's effects, by deleting this Digimon, they don't leave.)
16-45-1. <Guard> is a keyword effect. When any of a player's other Digimon would leave the battle area by an opponent's effect, by deleting the Digimon with this effect, it doesn't leave. 16-45-2. <Guard> is an immediate-type effect that triggers when any of a player's other Digimon would leave the battle area by an opponent's effect. (For details, refer to 15-8-5 "Immediate-Type Effects") 16-45-3. The processing from <Guard> is optional.
Comprehensive Rules §16-45 — official rules page
4 cards carry this keyword:
Rule text © Bandai, quoted from the official Comprehensive Rules for reference. Combalo is not affiliated with Bandai.
