If a unit with a 'when I attack/defend' effect enters the battlefield after the initial 'when I attack/defend' chain has already resolved during a showdown, does it still get that effect?

Ruling: Units that enter the battlefield during combat still get their 'when I attack/defend' effects as long as it is the first time they are gaining the attacker or defender designation during this combat.

Sequence: (for trigger ordering)

• Attacker triggers are added to the chain first
• Then other players in turn order if they have any
• Then defender triggers