Bogshroom

When Bogshroom enters the battlefield, you lose X life plus the number of Mushrooms you control, and put X minus five +1/+1 counters on Bogshroom.

When Bogshroom enters the battlefield, choose up to three:
• Target opponent loses X life.
• Mill twice X cards.
• Distribute X -1/-1 counters among any number of target creatures.
• Create half X, rounded down 1/1 green and black Mushroom creature tokens.