Chainer, Nightmare Adept grants haste to itself instead of reanimated creatures

[matthewevans]

Discord report

Chainer, Nightmare Adept grants haste to itself rather than the other cards it should apply to.

Source: https://discord.com/channels/1485498006781427802/1516200788723105944/1516200788723105944
Report ID: discord:1516200788723105944:1516200788723105944:0

Oracle text (verified from client/public/card-data.json)

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn.
Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.