This is best exemplified by its draft signpost, Junkyard Genius , which can sacrifice an artifact or creature to give all your creatures +1/+0 and menace
It taps for all of the mana, you can leave it untapped and forget about it when youre not using it and not have to take damage from it every turn, its like $10 from 4th Edition so you can actually have reasonable expectations of owning one- there are lots of reasons that more decks in EDH use Mana Vault than Crypt
Final point of note is that Agent is an artifact which increases his potential synergies while not being an issue in regards increase susceptibility to removal as you don't overly care about the body once you have cast it
Real cards have clean borders, accurate colors, and a thin black layer inside the cardboard when held to the light What is a PSA grade, and why is it important for rare Pokmon cards for sale
This runs a bit counter to the reasons that I praised Mishras Bauble, with the relevant upside of the card being that it does at least pressure players to play aggressive decks