Question on Captain Ironhides ability. His ability in bot mode states, When this attacks, and has a weapon-you may swap that weapon with a (blue pip) weapon from your hand.
Do you declare Ironhide is attacking, then you get to swap the weapon with a (blue pip) weapon from your hand? And I assume the original weapon wont have anything to do with the attack now.
Example, If I had a Grenade Launcher and swapped it with a Battering Ram, Captain Ironhide only gets the +2 from Battering Ram, and not the +4 from Grenade Launcher. Just trying to better understand when triggers happen in Transformers TCG. Thanks!

You declare that Ironhide is attacking and what Ironhide is attacking. This causes his ability to trigger. If you swap weapons, you do so before Battle Cards are flipped and before damage is done. This means that the attack value of the original weapon wont apply, but the new weapon will. However, if the original weapon also has a triggered ability that triggers when Ironhide attacks, that ability will still work, even if that weapon is swapped before you handle that ability.

Source: Wizards of the Coast (2019-06-28)    【Link to Ruling】

Tags: Attacking