Youve got classics like Deep-Cavern Bat for disruption, and Inti and Fear of Missing Out for card selection
In Constructed, your Contraption deck needs at least fifteen different Contraption cards, and no more than one of each
The second can swing with the best of them or just trade up on defense
The best card you can pull from one of these boxes is the rare Lugia V card
There are a few cards that are just good old fashioned merriment, such as Grand Master of Flowers, a four-mana planeswalker that can stop creatures blocking, find Monk of the Open Hand from your library or graveyard, and eventually become a 7/7 Dragon God with flying and indestructible
Martyr of Dusk 6.5 The bad Tithe Taker with no disruption and a poorer token