chatot pokemon card – 181/162 [Colorless] Chatot 139 SWSH04 Vivid Voltage

You also have access to Selesnya lifegain powerhouses like Trostani, Selesnyas Voice, and a variety of tokens with lifelink, like the soldiers from Guilds of Ravnica and the cats from Amonkhet block, so you can also use token effects like populate to increase your life gain

At the very least, you want to confirm that it is not mixed up with a different specification of the same character, or that you are not comparing an ungraded card with a PSA 10

Just too much value for a single cardboard rectangle

Any graveyard-based tutors like Entomb or Buried Alive will do the trick, as will self-Mill and Surveil effects like Desmond Miles

Platinum Angel Platinum Angel can be a good way to prolong a game that you might otherwise lose