Grenzo, Dungeon Warden is an interesting legend to come out of this set. While he starts as a 2/2 Legendary Goblin Rogue for RB, there’s a little X at the end of his casting cost – allowing him to come in to play with X +1/+1 counters.
While this is a unusual trait for a Goblin, his ability puts this ability in perspective.
2: Put the bottom card of your library into your graveyard. If it’s a creature card with power less than or equal to Grenzo’s power, put it onto the battlefield.
Grenzo is an interesting card that I’m interested to see more of. Cellar Door is one of my favorite cards from Innistrad (and is apparently the most beautiful phrase in the English language) as it uses a “bottom-deck” mechanic, that is very rarely seen.
With Reito Lantern in Conspiracy, it’s actually a fairly decent pick in Limited. While milling yourself in limited (with a 40 card deck at least, not counting you Worldknit players) is usually a bad idea, Reito Lantern lets you cycle cards back into your deck, or keep your opponent’s Reanimate targets out of their graveyards.
On top of this effect, there’s the fact that Grenzo can just get plain huge – enough mana being poured into him makes him a force to be reckoned with, and the larger he is the larger your targets are.
Aside from Reito Lantern, there isn’t very much in Grenzo’s colors that allow him to put creatures on the bottom to drop into play with Grenzo – you may just have to hope for the best. Red does have access to Magma Jet and Portent of Betrayal, and black has access to Read the Bones and Viscera Seer. Temple of Malice can also provide an option for putting cards on the bottom with its Scry ability.
While I”m not exactly sure how I”ll use Grenzo yet, he’s definitely a very interesting card. With this interesting mechanic and some limitations to breed creativity in Commander, I’ll be happy to see Grenzo when I draft Conspiracy.