Hazezon, Adroit Rallier

Whenever a creature attacks you or a
planeswalker you control, you may tap any
number of untapped lands you control. Create
that many 1/1 white, red and green Sand
Warrior creature tokens blocking that creature.
When Hazezon, Adroit Rallier leaves the
battlefield and at the beginning of your upkeep,
exile each Sand Warrior creature you control.