Spearbreaker Behemoth

Creature - Beast 5/5, 5GG (7)
Spearbreaker Behemoth is indestructible.

{1}: Target creature with power 5 or greater is indestructible this turn.
Few Nayans dare hunt the gargantuans. They're regarded not as animals but as forces of nature, like landslides or typhoons.
Illus. Christopher Moeller

Gatherer Card Rulings [Nov 2009]

• 10/1/2008: The ability checks the targeted creature's power twice: when the creature becomes the target, and when the ability resolves. Once the ability resolves, it will continue to apply to the affected creature no matter what its power may become later in the turn.
• 10/1/2008: Lethal damage and effects that say "destroy" won't cause an indestructible creature to be put into the graveyard. However, an indestructible creature can be put into the graveyard for a number of reasons. The most likely reasons are if it's sacrificed, if it's legendary and another legendary creature with the same name is on the battlefield, or if its toughness is 0 or less.

Format Legality	Legal in Vintage, Legacy, Extended, Standard, MTGO Classic
Printings (1/9)	Shards of Alara (Rare)