Giving your creature indestructible can be a lifesaver if you need other stax pieces (I am assuming if you play Boromir, Warden of the Tower , you are playing a stax deck) to stay alive, or if you just want to beat down someone and survive a board wipe
In a Two-Headed Giant game, Creeping Chill causes the opposing team to lose 6 life and you to gain 3 life
I won multiple games out of nowhere by casting Enraged Giant, equipping it, and swinging for 10 damage
Then the latter has flash, and auto-equips on arrival and then will give it shroud for the turn and then it cannot be blocked too
I like Blight Herder as a cheaper but potentially strong midgame creature that brings along an army in a can similar to powerful creatures in the past like Siege-Gang Commander and Cloudgoat Ranger
She's in the color of Auras or colorless equipment like Bonesplitter to really drop those costs early on