Unspoken Horror

Double Strike, Vigilance, Haste, Flying, Unconquered(This creature can't be countered, discarded or exiled)
When Unspoken Horror enters the battle field it gets +X/+X where X is the total power among other creatures you control
Every time Unspoken Horror attacks target player loses half their life
{2}Unspoken Horror exiles target enchantment and gains Hexproof and Indestructible