kelrok, the deathshark

Menace
When kelrok, the deathshark enters the battlefield create Vedor the dreadship, a legendary */4
vehicle artifact with Trample, crew 4 and "Vedor
the dreadship's power is equal to the number of islands you control"
when kelrok, the deathshark dies create X
treasure tokens where X is the number of
nontoken artifacts you control.