Summervine Vintage

At the beginning of your upkeep you may
pay {1}{r/g}. If you do, add an Age counter to Summervine Vintage.
{3}{r/g}, Sacrifice Summervine Vintage:
Choose X target creatures, where X is the number of Age counters on Summervine Vintage. Until your next turn, they can't attack or block, and their activated abilities
can't be activated.