Um - apart from running the clock out; why?

I think tUQ infers that by letting everyone have it, then no one has it. This creature will just sit on the table, and not attack, or block and can have random enchantments pile up on it.

Unfortunately, with my experience as a game reviewer who's played many different games with many different players and personality types, I think a card like this would be ignored by players who don't really care how the card words, and infuriate players who are literal about the game rules. If a literalist attacks a literalist, they will have an argument about who owns this creature. Neither player will relent, and the game would either come to blows, or would end abruptly. I don't think it's worth the whimsy that the surrealists would enjoy...

Well yeah - it's never going to be anywhere useful; ever. The only thing it lets you set up is an infinite sequence of activated abilities (so, hmm, if you can make it an elemental then you win. that doesn't seem intentional though.)

Amusingly, most people will steal it back in response to it being stolen - which won't work. But since it's costless, they can steal it back at the right time when they realise it.

I just... don't see what this is trying to do.