Blink Wooly Mammoth

In every other way an ordinary mammoth, this beast vanishes and reappears like a blink dog whenever it is attacked. Each time, roll 1d12: on 5 through 12 it teleports, up to 60 feet. Another 1d12 decides where it lands. A 1 puts it squarely before its attacker, a 2 at the attacker's left (shield side) front corner, and a 3 at the right (weapon side) front corner. Results of 4 through 8 place it at the attacker's back, and 9 through 12 drop it from above.

Being landed on deals 6-36 hp of crushing damage. Every item the target carries rolls a crushing blow save, and the target rolls vs. wands to stay conscious, or is out cold for 2-12 rounds. No more than one mammoth falls on the same person at once. The flattened victim also rolls Dexterity on 4d6 or is knocked prone, and while down the herd gains +2 to hit until the victim wins initiative and gets up.

Their massive tusks weigh and are worth half again as much as an elephant's, each fetching 1d6 x 150 gp, or roughly 6 gp per pound. Collecting them is the hard part.