Four card, triple draw, lowball poker.
Small and big blinds, typically either limit or pot limit.
Four betting rounds (after deal and each draw)
For showdown you can't used paired cards for suited cards (they are tossed so your final hand can be 1, 2, 3, or 4 cards). Best hand would be 432A rainbow.
Four card hands automatically beat three card hands, etc. If you have a three card hand an there are no four card hands, then you are in the running still and 32A rainbow would be best.
And remember, in lowball low hands are evaluated by the highest card first, so a QJT9 rainbow beats K32A rainbow