College of Luck

By utalizing Luck the college of Luck bard can better evade attacks, Cause other's to fail or succeed,  or use spell slots to cause/Heal damage. They do this by singing, dancing or even writing to cause Fate to be in their favor.

Lucky armor

Starting at 3rd level in choosing this class the bard gets armor 10 + dex + Cha, as long as he is wearing no armor.

Bards luck

Starting at 3rd level the bard knows how to manipulate luck, giving new ways to use bardic inspiration. You can now cause advantage or disadvantage on any d20 roll. 

Weal or Woe

The dice size is the bards current bardic die. And the amount they roll is the spell slot level. (I.e a 6lvl bard can use a 2nd level slot to cause or heal damage for 2d6.) A dex save of 8 + proficiency + Cha. 

Weal: the bard can expend a spell slot allowing a creature or themselves to be healed by some out side sources. It is up to the dm to explain how and why the creature was healed. 

Woe: the bard can expend a spell slot to also damage a creature, it is up to the dm to narrate how the damage occurred and what type it is. Successful save causes half damage. a successful save deals half damage.

Catastrophe

The bard has mastered fate and can cause a massive disaster for 60 ft radius damage, and the damage is bardic dice X bards level.  So a level 14 bard does 14d10 damage. A dex save of 8 + prof. + Cha. causes half damage.