Madara's Eternal Mangekyou

Enchant creature named ( )
Mangekyou Sharingan Right- {5}: this creature
gets +2/+2 until end of turn. you may only
activate this ability during your declare blockers
step.
Mangekyou Sharingan Left- {6}: Return to your
beginning of combat step, you may only activate
this ability during your end of combat step.
(anything that happened after your beginning of
combat step is treated as though it hadn't)