The Eternal Vault

You may choose not to untap this permanent during your untap step
{5}{t} Choose four creatures you control and five creatures your opponents control destroy those creatures: Target creature gets +5/+5, Indestructible, hexproof, Vigilance, trample, has "this creature cant be sacrificed", and has "This creature may block an additional four creatures each combat" for as long as The Eternal Vault remains taped.