[SEABEAST]

yeah agreed. it's too dynamic. you make a fair point that T9 and AK are nearly the same hand, but this just illustrates the fact that it's read and specific opponent based, ie you should either be calling with most aces or you should be folding any non boat.

if you want an in a vacuum answer with no reason to suspect he is terrible or in a weird mood, then probably 66 or maybe KT/QT. really he should never do this without a ten or much more likely AA/AT/66, but then again you said he was tricky and it depends how you play - if he knows you will always raise before the river with a ten or better and he knows you will fold an ace on the river, then obviously he should do this with any two cards. basically this can't be answered in a thread because you need a read on his motives.