and printed in Fabled, a set that was always in low supply
Enchantments are harder to remove than creatures, and the bouncing cost could be used as a positive to save the enchantment if an opponent tried to destroy it
Gets super-interesting for decks that play at Flash speed, like Heliod the Radiant Dawn
Filling your hand and graveyard with the same number of cards could just set you ahead further than your opponents have the time to catch up with
Even though creatures created with Encore are only around for a little bit, they still provide their buffs to all other creatures while they are on the battlefield, making them more effective than just extra attackers
The uptick scry ability gives Nissa, Steward of Elements a home in the Galadriel of Lothlrien elf/scry deck, but the 0-loyalty ability has the potential for extra land drops and free spells