Its +1 ability lets you add the top card of your library to your hand so long as it's a noncreature, nonland card
By adding more specific hoops a deck-builder has to jump through to cast or get value from a bomb, designers are then free to raise the power level on that creature significantly, knowing it wont become part of an ultra-consistent goodstuff shell
Kros deals out shield counters (defense contractor), but there are other options
Card x1 126+1 card types *Subject to change Company: Bandai Brand: One Piece Series: The World's Strongest Warriors Item Type: Booster Box Release Date: August 2026 UPC: Stock #: 572506 Our Guarantees to You, Our Valued Customer
You have more control over when it happens with the Conductor, but keep in mind the Peacemaker doesnt care who the crime is committed against, so youre going to be able to get multiple Proliferate triggers during most turn cycles
That being said, its entirely possible this cards price will climb back up