II

Arcane Surge

A good general booster

II

Enchanter's Emblem

Sell this if you run out of slots and can get a good T4 item

I

Extra Regen

If you need it earlier than expected (You usually buy this for Healing Booster)

I

Restorative Shot

If you need EVEN more heal

I

Imbue [E]

Mystic Expansion

If you need longer beam range

II

Imbue [E]

Compress Cooldown

Helps reduce grenade's cooldown

III

Active

Rescue Beam

This let you pull someone out of the mud

III

Active

Healing Nova

Great for deathballing and teamfights alike

III

Rapid Recharge

This is your power spike, rush as soon as possible

II

Active

Fleetfoot

Sell this only if you're buying a T4 item and ran out of slots

IV

Imbue [E]

Mystic Reverb

This is where your grenade's damage peaks

IV

Active

Divine Barrier

Really powerful support item that compliment well with Rescue Beam, replace Healing Nova if needed

IV

Healing Tempo

Greatly boost your support capability

IV

Boundless Spirit

This greatly boost nade damage and heal

III

Spirit Resilience

Too much Spirit damage?

III

Bullet Resilience

Too many bullets flying toward your direction?

III

Active

Debuff Remover

If the debuffs become unbearable or there're life threatening ones, buy this

IV

Juggernaut

If you're constantly being bombarded with slow CC and bullets, this is the best choice

IV

Active

Scourge

Grants someone microwave property + 40% spirit armor

II

Healbane

If enemy has too much sustain mid-game, you might need this

III

Active

Silence Wave

"Screw you spirit users" item

III

Active

Disarming Hex

"Screw you gunners" item

III

Greater Expansion

If you need a larger dome or a longer beam

III

Superior Duration

This can extend your dome and ice path's duration

IV

Active

Curse

"Screw this guy in particular"