Incremental boosts to your Merfolk suddenly become huge leaps in power, with other players at the table struggle to match up to your assembled forces
There are very few places where it is going to be a bad card, and even if you lose access to your graveyard, it is still an efficient creature with lifelink at its worst
Creatures you begin to control later in the turn won't gain any abilities or cause creatures to gain new abilities, and the abilities gained won't change even if every creature that normally had the abilities leaves the battlefield
This includes planeswalkers, which helps the seven drop pass the Gideon, Ally of Zendikar check
Kaya, Ghost Assassin There arent many blink effects like Kaya, Ghost Assassin, which brings back the exiled permanent at the beginning of your next upkeep
Because Light-Paws' ability puts an aura into play attached to her without casting it , if she ever gains the Shroud ability she will be protected from enemy spells but still able to suck up more auras