This ability is leagues above something like Lignify or Minimus Containment that give the creatures controller a chance to sacrifice their commander and get it back, so invest for your black decks today
C Common Cannon Soldier X DARK Level 4 [ MachineEffect ] ATK 1400 DEF 1300 You can Tribute 1 monster
Conjure, Seek, and giving cards perpetual buffs or debuffs are the main draw
Tower Winder Tower Winder is excellent if you have it during your first few turns, as you can get a defensive creature and fix your mana by getting your Command Tower, one of the best lands to have in EDH
Getting any card out of your deck for the low, low price of two mana especially since it goes directly to your hand is way, way too good
Others will be fantastically reimagined