Thea, Taker of Skulls

Trample, Haste, Bloodthirst 2
When Thea, Taker of Skulls attacks each other attacking Barbarian, Warrior, Berserker get's +X/+X until end of turn where X is equal to half of Thea, Taker of Skulls power rounded up.
{r}{g}{x}{t}: Search your Library for an Artifact Equipment card with converted mana coast X, place it into play attached to Thea.
At the end of turn if Thea, Taker of skulls has four or more Equipment attached, Exile Thea, then return her to the battlefield Transformed