Gitsutomi, Undead Warlord

Haste, Vigilance
Whenever you would create a token you may
create a 2/2 black zombie creature token instead.
If you would create a token from a Mount ability
you may instead create 2 2/2 black zombie
creature tokens
When Gitsutomi, Undead Warlord leaves the battlefield create a 3/3 black zombie horse
creature token with Haste