But any creatures, lands, artifacts, enchantments, planeswalkers or battles you have in play are all permanents, even if some of them are tokens (see below)
Since the trigger ability puts the lands directly into play, you can trigger it with Bristly Bill, Spine Sower and similar effects, or creature tokens with Springheart Nantuko to make more creatures to trigger more times
The more options a commander gives you, the better Inevitability Commanders are often cast when its time to close the game
Misleading Signpost can do a lot of work in this build
Better Than One What exactly is happening with this card
This can trigger big opus twice if you hit the right cards, but it's not card advantage and doesn't add to the board on it's own