when i activate galaxy soldier effect it lets me special summon it from my hand by discarding one other light monster, usually galaxy eyes photon dragon.
and once i have that on the field usually i can normal summon without tributing and then i can bring galaxy eyes back out of the grave yard and overlay into any rank 8 usually 107 or galaxy eyes prime.
sometimes galaxy knight doesnt let me normal summon without trubuting, even thought i clearly meet the cards effect requirements by having galaxy soldier on the field. :/
please help