Emcee

Creature - Human Rogue 0/1, 2W (3)
Whenever another creature comes into play, you may stand up and say in a deep, booming voice "Presenting . . . " and that creature's name. If you do, put a +1/+1 counter on that creature.¹
The ogre appealed the match loss and got it downgraded to a warning.
Illus. Quinton Hoover

Crystal Keep Rulings Summaries

• If you have two of these in play, you have to announce twice if you want both bonuses. [Unhinged FAQ 2004/11/15]
• All tournament formats have banned cards from Unhinged.

Format Legality	Banned in Vintage, Legacy, Extended, Standard
Printings (2/2)	Unhinged (Uncommon) Unhinged Alternate Foils (Uncommon)