Vii, First Kitsune

Vii, First Kitsune gains the following abilities
based on the number of your Phyrexian mana cards
in your graveyard or in exile:
1: Vii has base power and toughness 3/3 and spells
you control cannot be countered.
2: Vii has base power and toughness 5/5 and spells
you cast cost {1} less.
3: Vii has base power and toughness 7/7 and has vigilance, deathtouch, first strike, and trample.
4+: Creatures you control are foxes and have
base power and toughness 9/9.