Workhorse
{6}
Artifact Creature — Horse
Oracle Text
This creature enters with four +1/+1 counters on it.
Remove a +1/+1 counter from this creature: Add {C}.
Watch Out
Mana abilities don't use the stackRules Note
If this card's activated ability produces mana and doesn't target, it's a mana ability. Mana abilities resolve immediately without using the stack — opponents can't respond to them. However, abilities that target (even if they produce mana) aren't mana abilities.