Cheapest priced copy (Innistrad: Double Feature): $0.99 at Card Kingdom, near mint, their price list as of .
Jerren, Corrupted Bishop // Ormendahl, the Corrupter 
Legendary Creature — Human Cleric // Legendary Creature — Demon · 2/3 · Mythic · Innistrad: Midnight Hunt · #316
Whenever Jerren enters or another nontoken Human you control dies, you lose 1 life and create a 1/1 white Human creature token.
{2}: Target Human you control gains lifelink until end of turn.
At the beginning of your end step, if you have exactly 13 life, you may pay {4}{B}{B}. If you do, transform Jerren.
Flying, trample, lifelink
Sacrifice another creature: Draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.99 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 109 | Mythic | $0.99 | $3.99 |
| Innistrad: Midnight Hunt | 109 | Mythic | $0.99 | $0.99 |
| Innistrad: Midnight Hunt | 316 | Mythic | $0.99 | $1.49 |
| Innistrad: Midnight Hunt Promos | 109s | Mythic | — | $2.99 |
3 rulings from Wizards of the Coast
- 24 September 2021If, while activating mana abilities during the resolution of Jerren's last ability, you somehow gain or lose life, you will still be able to finish paying the cost and Jerren will still transform.
- 24 September 2021Multiple instances of lifelink are redundant, so giving lifelink to a Human that already has it gives no additional benefit.
- 24 September 2021Jerren's last ability will trigger only if you have exactly 13 life at the beginning of your end step. You will be able to pay {4}{B}{B} only if you have exactly 13 life as that ability begins to resolve. If your life total isn't 13 at that point, the ability will have no effect. You won't be able to pay {4}{B}{B} and Jerren won't transform.