one piece card game charlotte katakuri TCG: Starter Deck 062 Release Date Amazon.com: BANDAI One Piece TCG:

Beyond the tutor punishment, Ob Nixilis, Unshackled also grows stronger as creatures die, so its a credible threat in combat as well

This blue creature has been a staple of various competitive formats since its printing

What everyone else said is right -- you have to have the name, mana cost, and P/T (if it's a creature) visible

As long as you've got the available mana, there is no limit to how many creatures you can cast from the top of your deck

You can basically neutralize your opponents best nonland permanent if you have a full party

That's right, any time a source of damage is dealt to you or a permanent you control, the controller loses two life unless they pay one mana