If you use its action ability in the Main Phase, youll incur your 5th point of damage, placing the auto ability into effect when you attack
Inspiring Overseer Inspiring Overseer was by far the best Limited common from Streets of New Capenna
Even if Roon isnt your commander, as long as your blink deck has access to blue and/or green plus a blink spell that can target opposing creatures, this can be a nasty little trick that your opponent probably wont see coming the first time, and one theyll have to consider playing around thereafter
However, even with just one opponent, that player will draw four cards, so that ends up being a total net loss of one card for you, which means Prosperity with X=4 was not card advantage
Some will even feature isometric views of the environment they feature just like the viewpoints featured in classic PC titles, Fallout and Fallout 2 as you can see in the example above
If you understand them, it will save you time