Magic Awakening

Magic Awakening is the signature skill of Tower Faction that reads: Whenever this unit is enhanced by a friendly hero's spell, specific effect.
It is always the last skill, unlockable only for Orange or higher tier units.
=List of Skills=
Not all units have a Magic Awakening skill.
Here is a complete list of all the units and their associated Magic Awakening skill:
Unit	Skill	Description
Mage also receives a Magic Awakening ability from its weapon.
Additionally, some Tower units have additional skills that enhance the effectiveness of their corresponding Magic Awakening skill.
Unit	Skill	Description
=Synergy=
==Unit Skills==
==Hero Abilities==
Hero	Specialty	Rank	Description
=Strategy=
Magic Awakening is an extremely potent ability of Tower units, assuming you can trigger it often enough.
Presently there are two main strategies revolving around it.
==Astral==
Obviously Astral's abilities are all about triggering Magic Awakening very efficiently. Because you no longer need to target specific units with buffs, any spell he casts (except for those generated by the spell artifacts Titan's Thunder and Sword of Frost) will trigger Magic Awakening, and will do so for the entire battlefield. And not only that, but will also grant additional bonuses in the form of mana and temporary boost of all Tower units (which, surprise, includes all your Magic Awakening units).
This encourages Astral builds to focus on powerful Magic Awakening units. All units on the list are important for Astral save for Gremlin, who is a rather weak unit and not worth including in the build.
==Gelu's Giant==
Gelu does not have the vast capabilities of Astral to trigger Magic Awakening on the entire battlefield. However, Giant is a unit that can deal vast amounts of damage. This makes this strategy ideal for particular PvE scenarios like Crypt and Dragon Invasion.
To trigger Giant, Gelu has a minimum of three spells at his disposal: Precision, Stone Skin and Frenzy. The last in particular enables Giant to output an incredible amount of damage. Of course as you upgrade Gelu you may choose to enable his Spell Mark to get additional beneficial spells for him (Slayer and Bloodlust are good options as they would benefit from Fire Mastery together with Frenzy).
Finally, depending on the scenario and strategy, Gelu can also employ other Magic Awakening units, most popular at this moment being Magic Airship (for more damage dealt by caster units) and Genie (if healing is required).