Vistora, Eternally Chained

Indestructible, hexproof, trample
Vistora, Eternally Chained can't be exiled, sacrificed, have it's power and/or toughness
changed, can't gain counters, can't be put into
its owner's library or returned to it's owner's
hand, and isn't affected by abilities of artifacts
and/or enchantments your opponents control.
"Rumor has it that Vistora can't ever be released or
killed even if it wanted to be."—Jingles