Springjack Plains

(Bastions enter into the command zone under their
owner's control. Whenever you cast a commander
spell from the command zone, put X reserve counters
on this card, where X is the amount of mana spent to
cast it. Whenever another bastion enters the command
zone under your control, put this one into your
graveyard.)
Remove a reserve counter from Springjack Plains: Create a 0/1 white Goat creature token. You gain
1 life.