If you want a box thats both functional and a conversation starter, a custom wooden box is the way to go
On turn 3 you cast Titanic Growth then play a pair of Forests, or if you don't have Exploration, any fetch land that can crack itself and put another into play like Evolving Wilds does the trick to bring the power on your side of the table to 20
Before I get into my list, I wanted to share the thought process that lead to my final design
We happen to have a parallel in current Standard with Assassins Trophy, so that could be a decent start
Im currently re-editing this deck with a challenge of having at least 1 white, 1 blue, 1 black, 1 red and 1 green and 1 that has all 5 colour symbols in Planeswalkers, Creatures, Spells (Instants and Sorceries) and Enchantments Example - Planeswalkers - White Ajani, Strength of the Pride Blue Jace, Architect of Thought Creatures - Green Esika, God of the Tree Flip Instant - All 5 symbols Unite the Coalition Sorcery - Black Yawgmoth's Vile Offering Enchantment - Red Mana Cannons Almios on Blessed Perfection [1.3/MOM] - Suggestions Wanted
The point is to reduce friction, not create a side quest where everyone squints at your battlefield