The trial and error in playtesting are what makes the deck more efficient in its performance and consistency. What looks to be a solid decklist initially may soon evolve into a more versatile version, and that makes more effective plays against the other decks in the metagame of a format like Standard for example.

In today’s Strixhaven Standard deck tech feature, we have an uncommon build around on the card Transmogrify. The recent Standard version of Polymorph. This lets you cheat on the battlefield Velomachus Lorehold which also grants you a free spell when it attacks.

Check out the Magic: the Gathering Strixhaven Standard deck Jeskai Transmogrify full decklist below.

Maindeck
Planeswalkers (1)
1 Lukka, Coppercoat Outcast

Creatures (3)
3 Velomachus Lorehold

Spells (15)
4 Fire Prophecy
2 Prismari Command
1 Behold the Multiverse
4 Transmogrify
4 Lorehold Command

Enchantments (14)
4 The Birth of Meletis
4 The Raven’s Warning
2 The Akroan War
4 Shark Typhoon

Lands (27)
4 Fabled Passage
4 Hengegate Pathway
2 Island
2 Mountain
4 Needleverge Pathway
3 Plains
4 Raugrin Triome
4 Riverglide Pathway

Sideboard (15)
2 Soul-Guide Lantern
3 Negate
2 Rip Apart
3 Mystical Dispute
2 Elspeth, Sun’s Nemesis
2 Doomskar
1 Lukka, Coppercoat Outcast

Reference: https://mtgazone.com/deck/jeskai-transmogrify-by-crokeyz-strixhaven-standard/