In a game of MTG, a player may use a card with a keyword ability to attack the opponent directly
When they printed the original 15 partners, they did a pretty good job covering a lot of different strategies and mechanics
Source: psacard.com Mismagius is one of the spookiest Pokmon in the Trick or Trade set, and its no wonder it fits perfectly into the Halloween theme
Like most preconstructed decks, the big weakness here is in the mana base and how slow it is
Urza, Lord High Artificer I wouldnt be shocked to see people make the swap for him over Sai, Master Thopterist, but Urza ought to see a bump as people include him in the deck
For example, a Bird that enters the battlefield under your control with one +1/+1 counter on it won't receive an additional +1/+1 counter