As in draft boosters, set boosters will feature a guaranteed rare/mythic rare card, but with a higher chance of mythics appearing in both draft and set boosters from Zendikar Rising onward
If you just want to crack packs with an eye towards value, Modern Horizons 2 is the best option because of how many powerful and expensive cards it contains, but you can still get burned if you open too many junk rares
Legendary Land Color tag templates(None) Mountain Basic Land - Mountain Color tag templates(None) Nomad Outpost This land enters tapped
The haste mechanic was introduced all the way back in Alpha
Consequently, this article contains some outdated information, and shows screenshots of the app taken from long past versions
Are they different enough to make you go out and upgrade to them over Zendikar basics and other similar options