The last Stud betting round, with the 7th card dealt face down.
The pot is large and a call is only 1 bet, so decide borderline hands by required equity. Example. Facing a 1 big bet into a pot of 12 big bets, you can call if you win 1 ÷ 14 = 7%. Also called the river, with big bets. At an 8-handed table, if there aren't enough cards, the 7th card is placed face up in the middle as a single card everyone uses.