This is an extremely open-ended ability, rewarding you for milling yourself or your opponents, or even just for playing the game and removing powerful bomb creatures, by putting a must-kill threat into play for just five mana
This insidious magic caster will not only save the player from losing due to mill, but invert the game's core rules and make that player win the game if they try to draw from an empty graveyard
But its too fragile, and it dies in combat with basically anything
Plus, apart from being tribal Wizards, Mairsil, the Pretender is a great build-around-me commander that can go a bunch of different directions, and Kess, Dissident Mage opens the door for a sweet Grixis spellslinger build
Lenticular Posters can be framed and hang it on wall, hung on walls, put on tables, on decorative shelves, etc
Didn't shake up the meta quite as much as other sets