Rule 383.4.f.2

These Triggered Abilities are put on the Chain as Pending Items after the Unit these effects correspond to gains the Defender designation during Combat.

• 383.4.f.2.a These triggers will only have their condition checked once per combat, despite a Unit being able to gain and lose the…
• 383.4.f.2.b If the trigger condition contains other requirements besides defending and if those requirements are not fulfilled…

Official Core Rules