Because damage remains marked on a creature until the cleanup step or an effect removes that damage, nonlethal damage dealt to a creature may become lethal if you switch its power and toughness during that turn
[1] In Yu-Gi-Oh
Lemme break it down: I have no clue what could have compelled the card designers to spend all this extra work on just a gradient
Gilded Goose The Food token value is not what you need Gilded Goose for, since Delighted Halfling plays the Birds of Paradise role a bit more efficiently for most decks

Aclazotz, Deepest Betrayal Blech, Loafing Pest Blex, Vexing Pest Call Forth the Tempest Deadly Tempest Dragon Tempest Dragonhawk, Fate's Tempest Eccentric Pestfinder Fateful Tempest Fire Tempest Living Tempest Ojer Axonil, Deepest Might Ojer Kaslem, Deepest Growth Ojer Pakpatiq, Deepest Epoch Ojer Taq, Deepest Foundation Overgrown Pest Pest Control Pest Infestation Pest Mascot Pest Rescuer Pest Summoning Pestbrood Sloth Pestered Wellguard Pestermite Pestilence Pestilence Demon Pestilence Rats Pestilent Cauldron Pestilent Haze Pestilent Kathari Pestilent Souleater Pestilent Spirit Pestilent Syphoner Pestilent Wolf Pests of Honor Send in the Pest Shu Yun, the Silent Tempest Signal Pest Tapestry Warden Tapestry of the Ages Teacher's Pest Tempest Angler Tempest Caller Tempest Djinn Tempest Drake Tempest Efreet Tempest Hart Tempest Hart Tempest Harvester Tempest Hawk Tempest Owl Tempest Technique Tempest of Light Tempestra, Dame of Games Tend the Pests Thrasta, Tempest's Roar Volrath, the Shapestealer Zaffai and the Tempests
