It can be used at instant speed and circumvents most counterspells or stax pieces because you are not casting the cards
Similarly, Doc, Leader of the Seven Dwarfs lets you play characters for one less ink when he quests, which can be useful for cheating out Happy, Good Natured a turn early
All of the WHO cards you should kinda, sorta care about if youre a Commander player who likes to upgrade their decks or build new ones
There will be games when this is good, of course, but most of the time your opponent will either have a removal spell (and make it a 5/5 so they can kill it) or will have a way of dealing with it or ignoring it in combat (and make it a 3/3 so they can forget about it)
Submerge Market Price: $4.80, Foil: $60.95 Part of a series of cards that can be cast for free as long as an opponent (thats any opponent, for you Commander players out there) controls an enemy-colored land, Submerge is the most valuable of this series from the Nemesis set by far, as it hoses green Stompy decks with ease