Remember, in Japan it isn't in Inferno X
If Deadpool takes the ability of a card that is temporarily a creature, like a Mutavault, It can still exchange text boxes, and Deadpool will keep that text permanently
"Necrovalley" can shut down almost any major play, as only "Caam, Serenity of Gusto" and "Daigusto Gulldos" can bypass its effect
The key difference between exhaust and other activated abilities is that it can only ever be activated once
Wonder Pick also has its own events that (most importantly) offer up free themed picks and promotional cards, making this a part of the game to check regularly
When he sacrifices an artifact you get to add Red mana equal to that cards mana value, likely fueling future shenanigans by getting rid of spent artifacts