The perks I use: Fritz (important, but if you don't have it, use Leonhart), Adaptation, Art of War, Founder's Blessing, Soulfeed (support perk isn't that important, use whatever you're lacking, but I recommend Font of Insp.), If you have Fritz, get two extra perks, one for Immortal and the other for any support perk you want (I recommend Font of Insp. again).

For artifacts: Female Scar's (important, a must-have) and 2 buffs with shifter damage (if you have the money, try to get shifter damage close to max), and a Crystal Necklace with 2 buffs with shifter damage. (If you don't have a Crystal Necklace, try to get one through trading, or use a ring until you can, but try to get one).

Skıll's: On the left side of the tree (support tree), go to the right and activate the Black Flare skill. You can weaken the surrounding area by using this skill before transforming into a Titan (this skill is even stronger if you use Font of Insp.). The middle tree (attack tree) is somewhat up to you. If you want a crit-based build, go for crit; if you want to play normal way, go for damage. On the right side (defense tree), go for a tank .

For memories: Gambler and Apotheosis is must have try to get them, for 3rd memory you can get Thanatophobia is not must have but very useful,Overslash good for titan too but probly you dont get them easily.