Kenrith's transformation bug
I was playing brawl and my opponent enchanted my commander, Toph, the First Metalbender with Kenrith's Transformation. When I hovered over the card, it appeared the effect of the aura was active, she was green and the text was greyed out, but her abilites were still active and her endstep ability still triggered. You can see in the screenshot I attached my artifacts were lands in accordance with her first ability. This held true for artifacts played after she was enchanted. So it seems lik eher abliiates were not actually turned off, even though the UI was showing them as being turned off.
cmonster#14106
shared this idea
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F1SH#40728
commented
I also had this issue doing it against my opponent.
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King of Mulligans#50242
commented
My understanding is that this what you described is only partially a bug.
The issue here is that there's multiple effects going on at the same time. One (Toph's ability) is trying to change the type of other cards. One (Kenrith's Transformation) is trying to change the abilities of Toph.
When there's multiple effects going on at the same time, deciding which takes precedence isn't just a matter of (whichever was added most recently). Instead, the rules use a system of layers, with effects in one layer happening before effects in the next.
Type-changing effects (like Toph) are in Layer 4. Ability-removing effects are in Layer 6. Effectively this means Toph's ability isn't removed until it's already changed the types of the nontoken artifacts. So your artifacts should still be lands even with Kenrith's Transformation in play. For more on this particular interaction, do a search for Kenrith's Transformation and Ashaya, an older interaction which is similar in a lot of ways.
That being said, her endstep ability should not be triggering here.