Or could they potentially be used at the end of my turn, after they ETB, but before my turn officially ends
Moderns banlist is more than 50 cards, and much more likely to grow than shrink, while Standards is always quite small
This coloring page is an excellent activity for exploring the world of rare Pokmon cards through drawing.
Even other multicolored decks that leverage this mechanic, like one featuring Edea, Possessed Sorceress as the Commander, can make great use of these cards
For example, if you control two Cursed Wombats, each with no +1/+1 counters on them, and you activate the adapt ability of one of those Cursed Wombats, you'll put two +1/+1 counters on that Cursed Wombat, and then each of its granted triggered abilities will trigger
I think you'd need to run a lot more lands than usual to make sure you don't miss early land drops and can hit the ground running on turn three