Magic affinity Clan Boss won't inherently do anything that would ruin a speed tune, save stun targeting issues.  

That said the usual cleaner or block debuff champs can be used to make it affinity friendly.

yea its stun target issue since its blue and helicath is green.. team does fine on green/red with no cleanser 

Have someone else green on the team, and run them as lead.

Everyone is green on the team except skullcrusher .. so you're telling me putting one of them that isnt helicath for lead would solve this ? I dont mind needing 2 keys on blue .. but atm its 4-5 keys if i miss void and it ends up blue affinity..

Lead is generally preferred for targeting, yes. Cb will only switch from lead to target weak affinity, and if lead is weak, will usually only switch if doing so will kill something.

so lets say i put in dreng for lead instead of skullcrusher .. it will help do more ?(dont absolutely need unkillable 50turn for blue , just last longer to do more than 20m per key on blue)

It will help Dreng be the stun target instead of Helicath.

Dunno. Depends on your team. If it's full block damage, then yeah Helicath will never be targeted. But if you're relying on Helicath's shield to absorb the stun, then at a certain point he may switch from Dreng to someone else.

You're best off putting your squishiest person in lead, to ensure they're always targeted.

keep in mind im just trying to push 2keys out of my 1key team for unm .. if i put the squishiest one in lead and he dies on 3rd or 4th stun .. then it will target helicath next -.-

But im also willing to try this idea .. i will put anax or fatman lead to see if it gets enough dmg to 2 key on quick battle!

(yes quickbattle , auto completee is the only way i want to run CB from now on)