Xen, Curator of Life

: Whenever a creature dies, put X loyalty counters on Xen, Curator of Life, where X is the number of creatures you control plus 1.
-3: Create X 1/1 green Saproling creature tokens, where X is the number of cards in your graveyard.
-X: You gain X life and Draw X cards. Activate this ability only if you control six or more creatures.