Transformation

Transformation is a slang term used by Magic R&D to describe the following effect: "~ is a (color) (card type) with base power and toughness P/T." This mechanic is primary in blue.

Transformation can be temporary, through a one-shot spell or ability that lasts for the turn, or more permanent, usually through an Aura. It overwrites the base power and toughness of the creature. This ability used to be in both blue and white, but R&D decided to focus it in blue. Green has started to gain some use, but the general difference is that blue usually uses it as a shrinking effect like removal, whereas green uses it to pump creatures in a way that's hard to compound. The list below assumes the affected creature will lose all abilities unless noted.

Examples

Color	Name	Type	P/T	Color	Creature Type	Notes
	Darksteel Mutation	Aura	0/1		Insect	is an artifact creature with Indestructible loses all other card types
	Graven Dominator	Creature	1/1			All creatures Keeps abilities
	Harmonious Archon	Creature	3/3			All Non-Archon creatures Keeps abilities
	Humble	Instant	0/1
	Humility	Enchantment	1/1
	Minimus Containment	Aura			Treasure	is an artifact loses all other abilities.
	Mirror Entity	Creature	X/X			Keeps abilities Creatures controlled
	Overwhelming Splendor	Player Aura	1/1			All creatures controlled by enchanted player
	Reprobation	Enchantment	0/1		Coward
	Taranika, Akroan Veteran	Creature	4/4			Keeps abilities Gains indestructible
	Brine Hag	Creature	0/2			All creatures that damaged the dead Brine Hag Keeps abilities Permanent effect without a marker
	Dance of the Skywise	Instant	4/4		Dragon Illusion	with Flying
	Deep Freeze	Aura	0/4	+	Wall+	with Defender
	Diminish	Instant	1/1			Keeps abilities
	Eccentric Apprentice	Creature	1/1		Bird	with Flying
	Frogify	Aura	1/1		Frog
	Gift of Tusks	Instant	3/3		Elephant
	Ichthyomorphosis	Aura	0/1		Fish
	Illusory Wrappings	Aura	0/2			Keeps abilities
	Kasmina's Transmutation	Aura	1/1
	Mass Diminish	Sorcery	1/1
	Mercurial Transformation	Sorcery - Lesson	1/1 or 4/4		Frog or Octopus	Loses abilities
	Mordenkainen's Polymorph	Instant	4/4		Dragon	Keeps abilities Flying
	Octavia, Living Thesis	Creature	8/8			Keeps abilities
	Octopus Umbra	Aura	8/8			Gains a tapping ability Keeps abilities
	Ovinize	Instant	0/1
	Phantasmal Form	Instant	3/3	+	Illusion+	with Flying
	Polymorphist's Jest	Instant	1/1		Frog
	Poppet Factory	Artifact	3/3			Loses abilities
	Reduce in Stature	Aura	0/2			Keeps abilities
	Serendib Sorcerer	Creature	0/2			Keeps abilities
	Sludge Monster	Creature	2/2			Loses abilities
	Startling Development	Instant	4/4		Serpent	Keeps abilities
	Symmetry Mage	Creature	2/X			Keeps abilities X is target's toughness
	Turn//Burn	Instant	0/1		Weird
	Turn to Frog	Instant	1/1		Frog
	Vedalken Humiliator	Creature	1/1
	Warkite Marauder	Creature	0/1
	Will Kenrith	Planeswalker	0/3
	Will, Scholar of Frost	Planeswalker	0/2
	Wings of Velis Vel	Instant	4/4		All types	Keeps abilities Gains flying
	Sorceress Queen	Creature	0/2			Keeps abilities
	Sudden Spoiling	Instant	0/2			Creatures target player control
	Withercrown	Aura	0/X			Keeps abilities X is target's toughness
	Allosaurus Shepherd	Creature	5/5		Dinosaur+	Keeps abilities, affects all Elves controlled
	Belt of Giant Strength	Equipment	10/10
	Creeperhulk	Creature	5/5			Keeps abilities Gains trample
	Cycle of Life	Enchantment	0/1			Keeps abilities Only on your creature that entered that turn
	Druid of the Moon Circle	Creature	4/2		Bear	Loses all other creature types
	Exuberant Wolfbear	Creature	X/Y			X/Y is Wolfbear's stats Keeps abilities Target Human controlled
	Gigantiform	Aura	8/8			Keeps abilities Gains trample
	Gigantomancer	Creature	7/7			Keeps abilities
	Jolrael, Mwonvuli Recluse	Creature	X/X			X is cards in hand Keeps abilities All creatures controlled
	Kenrith's Transformation	Aura	3/3		Elk
	Lignify	Tribal Aura	0/4		Treefolk
	Scale Up	Sorcery	6/4		Wurm	Keeps abilities
	Singing Tree	Creature	0/X			Keeps abilities Attacking creature's toughness unchanged
	Werewolf Pack Leader	Creature	5/3			Keeps abilities Gains Trample Loses Human
	Wild Shape	Instant	1/3 or 1/5 or 3/3		Turtle or Spider or Elephant	Hexproof or Reach or Trample
	Aven Mimeomancer	Creature	3/1			Keeps abilities Gains flying Uses feather counters
	Godhead of Awe	Creature	1/1			Keeps abilities All other creatures
	Inkfathom Witch	Creature	4/1			Keeps abilities Unblocked creatures
	Dragonshift	Instant	4/4		Dragon	with Flying
	Vhati il-Dal	Creature	X/1 or 1/X			X is the original creature's stat Keeps abilities
	Biomass Mutation	Instant	X/X			Keeps abilities All creatures controlled
	Oko, the Trickster	Planeswalker	10/10			Keeps abilities All creatures controlled Gains trample
	Oko, Thief of Crowns	Planeswalker	3/3		Elk	Also hits artifacts Permanent effect with no reminding marker
	Oko's Hospitality	Sorcery	3/3			Keeps abilities All creatures controlled
	Omnibian	Creature	3/3		Frog	Keeps abilities
	Snakeform	Instant	1/1		Snake
	The Bears of Littjara	Enchantment	4/4			Any number of shapeshifters Keeps abilities
	Square Up	Instant	4/4			Keeps abilities
	Tanazir Quandrix	Creature	X/Y			X/Y is Tanazir's stats Keeps abilities
	Minsc, Beloved Ranger	Creature	X/X		Giant in addition	Keeps abilities
	Storvald, Frost Giant Jarl	Creature	7/7 or 1/1
	Island of Wak-Wak	Land	0/X			Keeps abilities Only flying creatures X is target's toughness
	Mimic	Artifact - Treasure	3/3