Herwest, Mad Scientist

Parnter with Myrthikir, the Plague Doctor
Whenever a player discards one or more cards,
put a charge counter on Herwest, Mad Scientist.
{t}: Draw a card, then discard a card.
{t}, Remove three charge counters from Herwest:
Draw a card.
{t}, Remove nine charge counters from Herwest:
Create three 1/1 Colorless Wastes Construct land creature tokens and gain 3 life.