Take a look at this photo
You can wipe almost anything for 3 mana, ranging from a Damnation to a Plague Wind
Inner pocket size: 4.3 3.3 IN
Still, a standout niche card
This infamously led to decks without creatures playing Umezawa's Jitte, an equipment that doesn't do anything without creatures, just to kill their opponent's copies of Umezawa's Jitte
The Sideboard The cards in our sideboard are designed to do three things: help improve our matchup against aggressive creature decks (by far our worst matchup), fight three-mana planeswalkers (especially Teferi, Time Raveler but also Narset, Parter of Veils and Oko, Thief of Crowns), and answer graveyard-based decks (which we actually help by filling their graveyard with our mill spells)