In an effort to burn down a tree, I summoned Burning Man. It spawned hostile and killed me.

Things that beat sharks: a knight, a diver with a sword, God, Zeus, Longcat, the Blob.
Things that do not beat sharks: A soldier, a sniper, a Navy SEAL (!), Ra (!!).

Pharoahs run screaming from Ra, who chases them with giddy enthusiasm.

This one is pretty well-known, but communists DO attack money. Also, air vents can blow bears to their doom. A polar bear will defeat a mind-controlled brown bear.