A Vampire Summoner build which focuses on staff attacks for main damage.

As every Summoner, it uses the Volatire familiar and it's aoe skill for damage and stun. Then the twilight matroarch for dmg and heal when low hp(this is needed for the vamp ability). And the Greater Atronach as ultimate mostly for strong/boss fights. It also uses the Maw Set for an additinal Daedroth summon. Then use Daedric prey to empower all of them while doing some damage.

Then we have the entropy for some DoT and healing. Then we have regenerative wards as main defense skill + some self heal and Critical surge for dmg buffing and some heal on crit. For this we chose the toef stone and Divines trait to increase crit chance as much as possible.