Cheapest priced copy (Ikoria: Lair of Behemoths): $0.35 at Card Kingdom, near mint, their price list as of .
Primal Empathy 
Enchantment · Uncommon · Ikoria: Lair of Behemoths · #200
At the beginning of your upkeep, draw a card if you control a creature with the greatest power among creatures on the battlefield. Otherwise, put a +1/+1 counter on a creature you control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2021 | 227 | Uncommon | $0.39 | — |
| Ikoria: Lair of Behemoths | 200 | Uncommon | $0.35 | $0.49 |
| New Capenna Commander | 348 | Uncommon | $0.35 | — |
4 rulings from Wizards of the Coast
- 17 April 2020If you control no creatures, you do nothing as Primal Empathy's ability resolves. If there are no creatures on the battlefield at all, you don't draw a card.
- 17 April 2020If the greatest power among creatures on the battlefield is shared by a creature you control and a creature you don't control, you draw a card.
- 17 April 2020If you don't control a creature with the greatest power, you choose which creature gets a +1/+1 counter while the ability is resolving. Players can't take actions in between the time you make this choice and the time that creature has a +1/+1 counter.
- 17 April 2020You determine whether you draw a card or put a +1/+1 counter only as Primal Empathy's triggered ability begins resolving. Players may respond to the ability to try to change which happens.