To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there
, , Sacrifice this artifact: Return all cards exiled with this artifact to their owner's hand
The average mana value of spells in your deck should be around 2 or 3, as that ensures you can cast spells throughout the game
After this, all other opponents must each decide whether to discard a card or allow the player to place a Construct, Robot, or Vehicle card onto the battlefield from their hand
There are some pretty chonky flyers in the decks too, with Brainstealer Dragon being at once a great card for the exile-and-play-opponents-cards archetypes, but also a great fit for reanimator decks that want to steal other players stuff
A PSA 10 copy embodies the raw, untamed power of early Magic