best blue card draw mtg Commander Staples: Blue Cards for Commander Best blue draw effects? :

Or casting Smuggler's Surprise

Ravenous Bloodseeker also lets you activate it multiple times in response to itself to discard a large quantity of cards, though youll also be killing the Bloodseeker in the process

They have no borders and come only in a fully ink-washed foil treatment

Emberheart Challenger also has the Valiant ability, which states that whenever it's targeted by a spell or ability you control for the first time in a turn, you exile the top card of your library and can cast it until the end of that turn

If youre interested in experimenting, a more achievable challenge might be the Guildpact Challenge: brewing a deck for each of the 10 Ravnica Guild Pairs

Some great support cards for flipping coins are Chance Encounter, Fiery Gambit, Tavern Scoundrel, and Krark's Thumb