The Isar

Indestructible, Hexproof
{t}; Add {c}{c}
The second time The Isar is untapped, sacrifice The Isar, then exile all permanents. This ability can't be countered.
{2}{w}, Sacrifice another Permanent: The Isar's controller sacrifices The Isar, then makes a 10/10 colorless golem token. The player who controls The Isar May not activate this ability, players who do not control it may activate this ability at any time at instant speed.