Each creature has special attacks whose damage will increase depending on the energy you give them, so your main mission will be to enhance their abilities and prevent them from fainting in battle
Putting a card into play this way doesn't let you get any casting triggers, so watch out for that
For more on how Life cards function as a resource, the One Piece TCG life cards explained guide covers the mechanic in full detail
Raphael, the Nightwatcher I'm sneaking Blade Historian in for one less mana which is a huge difference, as is the element of surprise
A main attacker needs the following attributes in order to be viable in a deck: It must be able to setup quickly
Each booster contains at least one Rare or Mythic (maybe more!), a guaranteed foil, an art card, and, if you're lucky, an exciting card from Magic history