Manafiend Abomination

Manafiend Abomination's power and toughness are each equal to the number of Swamps you control.
Whenever a player casts an instant or sorcery spell, put a +1/+1 counter on Manafiend Abomination.
"And their decayed bodies and their soon-to-be forgotten incantantions will become its sustenance."
- Zabudnut, Hand of Ovstamojat