So at worst you have a 6/6 samurai, but at best you hit a living weapon, job select card, For Mirrodin!, Meteor Sword, Embercleave, and the nasty Nazgl Battle-Mace
Other cards with the Boost keyword or put a card under abilities would be great
This effect is useful for avoiding chump blocks, where an opponent can declare a measly little 1/1 to stop all of the damage from your 10/10 Gigantosaurus
These two interactions are stronger than they may appear, and in fact, are so strong, we need to be careful about when we play Urborg for no reason since it will often help our opponents
Despite being very powerful, she was needed