Lands don't cost any mana, but you can usually only play one a turn, and like other MTG card types, you can only play them at Sorcery speed

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Whichever group you go with there's lots of fun to enjoy in Bloomburrow
After all of this, the spells will resolve from the stack unless someone casts an instant-speed spell or activates an instant speed ability
Avatar Aang // Aang, Master of Elements is a double-faced card, a design reserved for characters who undergo a big transformation
Considering that around 75% of Standard decks are playing this enchantment, it's becoming a huge barrier of entry for paper Standard