Your creatures will eventually die somehow
Another great choice is Craterhoof Behemoth which gives your team a massive +X/+X boost and trample from your creature count, making your Elf swarm lethal
My dinosaur Commander deck has [c]Atla Palani, Nest Tender[/c] as the commander
There's also always the risk that one of their creatures will be the wrong color, or it will fly, or something similar will go wrong, and the creatures that can't attack are still around to prevent you from winning the game in the meantime
Green can actually draw large amounts of cards with something like Rishkar's Expertise, but an unmitigated draw-seven just isnt design space that white or green currently has access to
Final Fantasy Through the Ages Overall, WeeklyMTG showcased ten cards from Through the Ages , putting the current count for revealed cards from the bonus sheet to 53 out of 64