I am just about to max Joon and I’m not sure which one I should level next to pair with him and Delilah. My bench of 4 & 5*s include: Justice, Vivica, Leo, Danzaburo, Gretel (already have 1 maxed), Wu (already have 1 maxed), Chao (already have one maxed), Li Xiu, Hu Tao.
My main focus is titan damage, then raid offense, then raid defense, then alliance wars.
My other color maxed (or semi-leveled) 4* and 5*s are:
Purple - Sartana, Aeron (4-53), Mok-Arr (3-70), Rigard, Sabina, Tiburtus
Blue - Alasie, Isarnia (4-53), Kiril, Sonya, Grimm, Boril (3-60), Triton (3-50)
Green - Zeline, Alberich, Lianna (3-70), Hansel, Caedmon, Melendor, Peters (3-31)
Red - Gravemaker, Natalya (3-62), Zimkitha (3-33), Ares (2-49), Wilbur, G. Falcon, Boldtusk,Scarlett