op10 japanese booster box ONE PIECE Card Game Pack: Royal Lineage (OP10) Edition Includes a Variety of Powerful Characters One Piece Card Game OP-10

It's also a lot more complicated due to this, but the premise of synchro summoning is that you combine monsters with the same level to summon powerful monsters from the Extra Deck

You can then tap it and remove it the counter on it to add the exact amount of mana you spent to attach the counter and card in the first place, and then that mana can only be used to cast the card attached to Ice Cauldron

Dropping him once you have an established board can get you very close to an instant ultimate, but dropping him early is still great, because he can make the way for your Ninjas to connect while giving you card advantage

UR Ultra Rare Forbidden Forbidden Jowgen the Spiritualist X LIGHT Level 3 [ SpellcasterEffect ] ATK 200 DEF 1300 You can discard 1 random card from your hand to the GY

Set Code:GD01

Then I got to watch Brian David-Marshall draft green-blue-black mill-yourself a couple of times, and I was completely hooked