Spellsinger enhancements

Tier One
Requires Spellsinger, Bard Level 1

Tier Two
Requires Bard Level 2, 5 APs spent in tree

Tier Three
Requires Bard Level 3, 10 APs spent in tree

Tier Four
Requires bard Level 4, 20 APs spent in tree

Tier Five
Requires Bard Level 5, Character Level 12, 30 APs spent in tree