I have used Raspy as a buffer a lot. I like taking high threat models such as Howard, stacking more armour on them, rushing them into the opponents crew and then watch while they spend AP to slowly whittle down the dangerous model in their ranks while the rest of my crew move into position. Great for bodyguard. Its also really useful against assassinate. I know many love armour of December to get out of combat, but if my opponent manages to engage her with a high damage model I use her to armour herself (x3 if severe damage is 6+, x2 and defensive for more tomes if severe is 5 or less), try to get tomes. The armour will reduce all damage below 8 to 1, then her trigger ends the attackers activation. Try the use low tomes first against an opponent with 3 melee activations as crafty ones, when seeing a tome, might cheat their score lower to fail so they get another attack and hope you don't get a tome this time. Managed to laugh in the faces of both Lilith and Nekima for 2 turns using this trick + stones when the opponent went first.