The reincarnation skill you choose will depend on the way you play :
- For PvE astral layers, you can go for your self defense, so Paladin, Warrior, or Summoner's defensive spell. Or you can go for helping heals (or in the case where there is no heal and only support) and then you can choose the divine foresight from cleric.
- For PvP : -> In battlegrounds, you can go for self defense (spells quote just before), or mobility, and then choose cleric or mage flash. Another spell which can be use in this situation is the psi's bump, but that's not the one I prefer.
-> 6v6 or 12v12 dominion fights : as bards usually play on support, I really recommand the divine foresight from cleric, the only usefull spell in this case.
All the other spells are clearly unusefull for bards.