When paired with other effects that require opponents to pay additional resources to cast their spells, whether it be life or mana, when paired with Liesa, opponents can be put in miserable situations in which casting even the most simple of spells is an arduous endeavor
This set looks poised to deliver in a way that Battle for Zendikar and to a lesser extent Oath of the Gatewatch did not
Basically just aggressively mulligan into a Lost in the Woods and slam it on turn 5
So there's a clear answer on this little typographical slip-up: you gotta pay that energy if you want those sweet, sweet card draws
[136] A limited set of land cards in the Secret Lair featured paintings from Bob Ross, licensed through his estate
This means Aggro decks are forced to adapt, slowing down a bit while picking up the ability to defend themselves