That iconic appearance is represented in the Mickey Mouse - Steamboat Pilot card
While you often use it for card draw, the board control or pressure is a nice option to have
Xyris is an interesting card because when you hit someone for three, theyll also draw three cards, so maybe theyll want to get attacked
Lets start with Excalibur II I had to think about it for a bit, because Aettir and PriwenAettir and Priwen is a crazy card

Gallery and List of Disguise Cards Alley Assailant Arno Dorian Aurelia's Vindicator Aveline de Grandpr Basilica Stalker Bayek of Siwa Bolrac-Clan Basher Boltbender Branch of Vitu-Ghazi Bubble Smuggler Concealed Weapon Concert Kaboomist Coveted Falcon Crowd-Control Warden Culvert Ambusher Defenestrated Phantom Dog Walker Essence of Antiquity Exit Specialist Experiment Twelve Faerie Snoop Flourishing Bloom-Kin Forum Familiar Fugitive Codebreaker Gadget Technician Granite Witness Greenbelt Radical Hunted Bonebrute Lumbering Laundry Mistway Spy Museum Nightwatch Nervous Gardener Nightdrinker Moroii Offender at Large Printlifter Ooze Pyrotechnic Performer Rakish Scoundrel Rampaging Ursaguana Riftburst Hellion Roalesk, Prime Specimen Sanguine Savior Shady Informant Sleuth Instructor True Identity Undercover Crocodelf Unyielding Gatekeeper Vengeful Creeper Best Disguise Cards Looking back to morph, there wasnt a huge amount played from those cards, and the addition of ward 2 isnt much of a bonus on your 3 mana 2/2

A budget build in those colors can draw plenty of cards, where a budget deck in white still struggles and has to play the exact same draw spells regardless of strategy