All-in every hand.

[nath]

If you're prepared to rebuy a lot, start calling him with any better-than-random hand. I don't know exactly what that is, but any pair or ace is a good start, most kings and queens, some suited connectors (if you really want to gamble you can go pretty low with those). (I still wouldn't do stuff like call with K2o if I wasn't closing the action, but you can probably figure that out.)