Phragmites

when Phragmites enters the battlefield, exile X noncreature permanents. Every time a plyer draws
a card, put X black/green lands on the battlefield
with all previous effects.
{t}: add one black/green mana to your mana pool.
{ut}: return all permanents cast using mana from Phragmites to the hand. do not discard the turn this effect is activated