Klale Tsolo:
[Klale has a +10 for BAB and +4 for Strength, but I'm guessing I can't take a 10 (or 15). 09:50, Today: Klale Tsolo rolled 24 using 1d20+14. Ungrappled? Klale may have, since he has tow attacks, the possibility of attacking. (He may have pointed his sword up as movement came down on him. Depending on the situation, KIlale might slam sideways into the wall, his plate mail will protect him and put the attacker between two hard surfaces.]
Because Klale acted slower, he would not have had time to point the sword up.
He definitely is able to ignore the damage and throw off the G. Darkmantle as part of the reactive grapple roll.
If he does not move, he may use one action to ready his sword after the grapple and make one attack this round. If he does not engage in a grapple again, he may use his full attack against the G. Darkmantle next round.