Xerikna, Noxious Scourge

When Xerikna, Noxious Scourge enters the battlefield, create two 2/2 green Insect creature
tokens.
{2}, Discard a land card : Target Insect gets
+3/+3 until end of turn.
Whenever an Insect you control dies, you may
exile a land card from your graveyard. If you do,
create a 2/2 green Insect creature token.