One-hit Wonder

Barbarian King is a supporting attack boost tank that makes Pekka oneshot everyone, Pekka is the hero in this deck.

Pick the the +6 attack on pekka because the 50% chance to critical hit is pretty high not gonna lie
get the unstoppable if the enemy have stunlock like bowler

valkyrie can also carry and do a ton of damage against shield enemies like knight or grand warden decks as well as witches, if enemies are those consider valkyrie over Pekka

Barbarian King is the tank
Use Barbarian king invincible upgrade, you can move him out of his place a little and place golden giant on side that has some damage to reduce king taking too much damage.

Use Golden Giant when enemy has stun.

-Battle healer is just here for the synergy, but you can use heal if you need more health.

-Villager as well is here for the synergy clan and speciaist.

You need to use all their synergies to make most value.