Jörmungandr, the End

Jörmungandr’s power and toughness are each equal
to the number of Islands you control.

Whenever Jörmungandr enters or attacks, put a flood counter on target land. It’s an Island in addition to its other types for as long as it has a flood counter on it.

The first instant or sorcery spell you cast each turn costs {u} (or {1}) less to cast for each land
you control with a flood counter on it.