Lexi d'Escalier

Whenever you cast an artifact or enchantment
spell, put a lore counter on Lexi d'Escalier.
Artifact and enchantment spells you cast cost
{1} less to cast for each lore counter on Lexi
d'Escalier.
Remove all lore counters from Lexi d'Escalier:
make an X/X black Ooze creature token with
deathtouch and lifelink, where X is the number
of lore counters removed this way.