Axel sacrifices himself by putting everything he has into an attack to save Sora.
Nobody does. When Axel and Sora are in the way between the worlds, they are ambushed by a swarm of Nobodies. And to save Sora, Axel uses up all of his power to destroy the Nobodies. After the attack Axels body fades out of existance.
Axel Lieber has written: 'Axel Lieber'
Axel Coon's birth name is Axel Broszeit.
Axel Hedfors's birth name is Axel Hedfors.
Axel Kuschevatzky's birth name is Axel Vladimir Kuschevatzky.
Axel Uriegas's birth name is Axel Uriegas Duarte.
Axel Jepsen's birth name is Axel Jrgen Jepsen.
Axel Kielland's birth name is Axel Zetlitz Kielland.
Axel Bergman's birth name is Axel Leonard Bergman.
Axel Pless's birth name is Axel William Pless.
Gabriel Axel's birth name is Gabriel Axel Mrch.
Axel Axgil's birth name is Axel Lundahl-Madsen.