Infernius Spawnington III, Esq. — ruling 1

Reveal is a keyword action. A card is revealed if a spell, ability, or rule instructed you to reveal it, using the word “reveal.” While you are allowed to show your hand to other players just because you feel like it, that isn’t “revealing” those cards.

Infernius Spawnington III, Esq. : règles, fonctionnement et interactions (MTG)

Infernius Spawnington III, Esq. 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

Flying, first strike, trample, haste This spell costs less to cast for each card you've revealed this turn. When this creature enters, you may say "I'm here." If you do, it deals 3 damage to target player.

How it works : Infernius Spawnington III, Esq.

Original English text — Wizards of the Coast / Scryfall

#1February 29, 2020· Wizards of the Coast
Reveal is a keyword action. A card is revealed if a spell, ability, or rule instructed you to reveal it, using the word “reveal.” While you are allowed to show your hand to other players just because you feel like it, that isn’t “revealing” those cards.
No other card is named in this ruling.