mtg card anatomy of a Parts of a MTG card, as explained in the Rulebook (extract of page 5) Expanded Anatomy | Strixhaven: School

Oppression Oppression is among the most efficient cards in Commander to ensure you wont be invited back to the next game night

In a pinch, it also works as another (too expensive) Phyresis for your own creatures

Ojer Kaslem, Deepest Growth / Temple of Cultivation Listed at: $25 Ojer Kaslem, Deepest Growth is the green legendary god amongst all the colors of gods in The Lost Caverns of Ixalan that can also transform back into itself

Unless you want the mild synergy these kinds might offer your deck there is very little reason to be playing them

So its like a repeatable Treasure Trove? Right

Perhaps this is why this card was available (reprinted) and included in nearly every Core Set