Walking Barista

Walking Barista enters the battlefield with X +1/+1 counters on it.
When Walking Barista enters the battlefield, target opponent buys you one cup of coffee with X shots of espresso.
{4}: Put a +1/+1 counter on Walking Barista. Target opponent buys you one shot of espresso.
Remove a +1/+1 counter from Walking Barista: It deals 1 damage to target creature or player.
"Would you like some coffee?"