For 10 points, name this shape-shifting Irish god that was  the son of Lir.
In order to kidnap Tuag, this god employed the talents of the bard  Fer I, who could use his enchanting to put anyone into a dreamless sleep.  He also transformed a woman named Aife into a crane bag to carry the  letters of the alphabet. This man, who fathered the queen of Tir  Tairngiri, Niamh, was the one who gave the Tuatha De Danaan the idea  of living under the hills of Ireland. Objects owned by this man include  the (*) Aigean Scuabadoir, which was a boat that could read its pilot's mind,  an enchanted horse named Aonbarr, and a sword called "the Answerer." He  was also said to be the consort of Fand, a woman who fell in love with the  warrior Cuchulainn. For 10 points, name this shape-shifting Irish god that was  the son of Lir.
In order to kidnap Tuag, this god employed the talents of the bard  Fer I, who could use his enchanting to put anyone into a dreamless sleep.  
Manannan mac Lir [do not accept Manawyddan fab Lyr, their  names may be cognate, but they sure as hell aren’t the same person, despite  what previous packets seem to think]