Tier 1:
Effusion Recast (-6 seconds per upgrade)
Ward Recast (-6 seconds per upgrade)
Rune Effect (+2 Damage, +2 Resistance, +2 MDB per upgrade)
Swordplay Recast (-10 seconds per upgrade)
Swordplay Effect (+3 Accuracy and +3 Evasion per upgrade)

Tier 2:
Bardark (+2 Resistance per upgrade)
Barlight (+2 Resistance per upgrade)
Reflect (Spell, Recast 5 minutes, 20% damage reflected per upgrade)
Rune Instinct (Trait, +5 MDB per upgrade)