Thats already good on a 4/3, and as the game goes on, your spells can get even cheaper
self-mill is a good start, but entomb effects are better
The March is a cheap sorcery that copies an artifact creature you control, so it's cheaper but more limited since just artifact creatures that you control are copied
These are able to use "magical ink" to summon "glimmers", which are the various iterations of Disney characters
If an opponent gains control of Zidane and one or more other permanents from you simultaneously, Zidane's last ability will trigger for each of those permanents, including itself
Themes: Zombie tribal, self-mill, graveyard recursion, and amassing an undead horde