Sparkshaper Visionary — ruling 1

A planeswalker that becomes a creature due to Sparkshaper Visionary's ability can't attack unless you've controlled it continuously since your turn began.

Sparkshaper Visionary — ruling 2

Once Sparkshaper Visionary's ability has resolved, each of the chosen planeswalkers are no longer planeswalkers for the rest of the turn. They don't lose any loyalty counters or abilities, and you can still activate their loyalty abilities if you haven't done so yet this turn. They don't lose loyalty if they're dealt damage while they're not planeswalkers.

Sparkshaper Visionary : règles, fonctionnement et interactions (MTG)

Sparkshaper Visionary is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

At the beginning of combat on your turn, choose any number of target planeswalkers you control. Until end of turn, they become 3/3 blue Bird creatures with flying, hexproof, and "Whenever this creature deals combat damage to a player, scry 1." (They're no longer planeswalkers. Loyalty abilities can still be activated.)

How it works : Sparkshaper Visionary

Original English text — Wizards of the Coast / Scryfall

#1July 28, 2023· Wizards of the Coast
A planeswalker that becomes a creature due to Sparkshaper Visionary's ability can't attack unless you've controlled it continuously since your turn began.
No other card is named in this ruling.
#2July 28, 2023· Wizards of the Coast
Once Sparkshaper Visionary's ability has resolved, each of the chosen planeswalkers are no longer planeswalkers for the rest of the turn. They don't lose any loyalty counters or abilities, and you can still activate their loyalty abilities if you haven't done so yet this turn. They don't lose loyalty if they're dealt damage while they're not planeswalkers.
No other card is named in this ruling.