Saps, Curious Hermit

{g}: Choose one. Until end of turn, this creature has the base power and toughness, creature type, and ability of that choice. If this creature would be damaged, prevent that damage and end this effect instead. Activate only once per turn.
• 5/4 Elk with trample.
• 2/2 Cat with hexproof.
• 2/3 Badger with "This creature can't be blocked."