That gives you an option to get some early lore, especially if she's paired with any of the Steel Bodyguard cards that you can select from her own ink color
(2022-09-09) Triggered abilities use the word when, whenever, or at. Theyre often written as [Trigger condition], [effect]. Some keyword abilities, such as prowess and fabricate, are triggered abilities and will have when, whenever, or at in their reminder text
Unfortunately, since the card's included in the Commander banlist, and isn't you're unlikely to experience the joy of trading a treasure for a Blightsteel Colossus - though you're allowed to run a single copy in Vintage, if you've got the cash
Cityscape Leveler | 8 Colorless Mana Artifect Creature Construct Trample When you cast this spell and whenever this creature attacks, destroy up to one target nonland permanent
Here, it's important to remember just how much supply there is of Commander decks
That's very strong, and you can easily build around it as a way to make a free dork without jumping through any mana or cards or tapping or "once per turn" or anything else