Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it.
As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)
Whenever you cast a spell, you may remove a slumber counter from Arixmethes.
![{t} {t}](/extstatic/symbol/other/t.svg)
: Add
![{G} {G}](/extstatic/symbol/mana/G.svg)
![{U} {U}](/extstatic/symbol/mana/U.svg)
.