Toxicrene

• WOTC Official Reminder Textofficial rules
  Deathtouch — Any amount of damage this deals to a creature is enough to destroy it.

• WWizards of the Coast2022-10-07
  Official Ruling
  If a permanent has an ability that causes itself to be a land, such as that of Ashaya, Soul of the Wild, that ability will apply to it even though it loses that ability due to Toxicrene. This is because type-changing effects are always applied before any effects that add or remove abilities. It will still have ": Add one mana of any color" and lose all other abilities.

Rulings via Scryfall