Caster(Extra) Overview

Overview 

Caster is a nimble mage hero with sustained DPS and variety of utilities. While she is not optimized for overwhelming an army of foes with devastating Noble Phantasm, her pinpoint burst on low cooldown and prominent ability to save the team from sticky situation allow her to be a great backline support.

Skirmish

Caster's bread-and-butter is Soulstream, the most spammable skill in Fate/Another up to date. With 1 second cooldown at Level 5, it makes for an excellent source of consistent damage output. While Soulstream is not very powerful on its own, its multi-hit properties and spammability make great synergy with rest of her kits. With right setup, she can put a serious hurt on isolated target that matches even more dedicated assassins.

With that said, being primarily sustained DPS with relatively short range and low durability means that she will be always under threat; it's where her Attributes come in.

Fate's Call is very versatile forced teleport that can be used to initiate the team fight or reposition the teammate back to safe zone. It can be even cast on Caster herself for a free Blink - The delay is 0 for point blank distance -.  However, if she is in such dire situation that even two Blinks are not enough, she has another trump card up her sleeve.

Unless she is firmly locked by Crowd Controls of highest quality such as Enkidu or Nine Lives, Caster may activate one of the most powerful escapes in the game by simply pressing one button. While it comes at hefty cost of 15 mana and 50% damage off from Combo, a chance at second life may be a worthy tradeoff.

Team Fight

Once the fight occurs, Caster's main role is to provide adequate support for allies in danger. The most fearful capability of Caster during fully-blown fight is the counter-initiation with her ultimate Eightfold Blessing of Amaterasu.

With Attribute, Eightfold Blessing of Amaterasu effectively becomes an instant silence in huge radius. This can nullify most of initiation attempts and buy a time for team to either retreat or retaliate on advantageous filed.

Synergy

Being a fragile mage hero, Caster thrives in a team composition where there is someone else to take the heat in the frontline. Also, Mantra is great follow-up for Nine Lives.

Caster can make some great clutch saves for this lone swordsman who has to be right on the nose of enemies to get the job done. The revoke from Subterranean Grasp is also a huge asset for Assassin, as it can nullify enemy's attempt to use 3rd Command Seal when targeted by Tsubame Gaeshi.

Subterranean Grasp's global range can be exploited to root the unsuspecting enemy, keeping it within the AoE of devastating beams that are seemingly dodgeable by just walking away. If you want some more fun, cast Mantra on one of these heroes casting beam and teleport them right in the face of enemy legion with Fate's Call.