peak island
Some cards would benefit from an end of turn effect
For instance if something burned own cards 2 until played
And debuffed opposition remaining cards in hand 20
Then this type of card would fit with the likes of lake of fire whilst reducing opponents hold cards effectively neutralising Cydonia or payara
spare mulch
so start + return?
lyric zodiac
But OnStart can activate with effects based on what happened in the previous turn, basically you can simulate an end of turn effect using onstart.
You can even put something like.
OnStart: if you didn't draw this card this turn, do something.
I think it would be more to avoid repetitive writing than something new.