Just expand the table, I will increase point buy back up to 30 like in the last playtest and expand the table to allow 16-18 point ability scores if the players want them.
16 = 12 pts
17 = 15 pts
18 = 19 pts
Natural progression, each ability score costs a number of extra points equal to its modifier so the 16 costs 3 points more than a 15, 17 costs 3 points more than 16, and an 18 costs 4 points more than a 17.
16 = 12 pts
17 = 15 pts
18 = 19 pts
Natural progression, each ability score costs a number of extra points equal to its modifier so the 16 costs 3 points more than a 15, 17 costs 3 points more than 16, and an 18 costs 4 points more than a 17.