The more cards youve dumped into the graveyard over the course of a game, the more fuel you have to work with
The instant one-cost with kicker will give one dork you control (targets for heroic) indestructible
The opportunity cost to run this in blue decks is very low, since its a blue land with no downside
As I mentioned before, things are more complicated than this when you consider cantrips, card advantage, and such, but this should give you a good start for making sure you have the right number of lands in your deck
Thats decent regardless, but like Brave Little Tailor it comes with the added boon of being attached to the Evasive keyword, meaning that Goofy, Daredevil will avoid any challenges unless theyre from fellow Evasive cards