When the equipped creature deals combat damage to a player, the Sword deals even more damage to them equal to the cards in their hand, while you gain one life for each card in yours
I didn't appreciate it enough at the time, but as the glut of 'regular' elves start showing up, I appreciate the slight edge that the Llanowar Elf has
While this can be used as a combo card (to do weird stuff in Changeling decks), its probably going to head to the 99 of your First Sliver deck, or command your swarm if youre just getting in
Damn, what a cool card
Its especially useful for EDH decks that want blue creatures that tap like Unctus, Grand Metatect, or decks that want a lot of looters like Oskar, Rubbish Reclaimer
On a similar note, cards that care about dealing excess damage like Dreadmaw's Ire and Maarika, Brutal Gladiator can reap plenty of rewards from power doublers