This nifty warlock succubus seduction macro will let you focus a target with ALT held in, then command your succubus to cast seduction, while you cast Curse of Shadows to improve the hit rating of it. After the inital seduction breaks, you can just press the macro button again with no alt, or switching your target and your lovely mistress will seduce the target some more. Use the ALT key and target another mob to switch seduction targets, or wait for the mob to die.
/stopmacro [nopet:succubus] /cast [target=pettarget,nomodifier:alt] Seduction /stopmacro [nomodifier:alt] /p Seducing %t - Don't attack the mob with the hearts! <3 <3 /petattack /cast Seduction /cast Curse of Shadow