Remember, if your opponent isnt casting spells other than counters, theyre not building up a board presence

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These faceless, otherworldly monstrosities are some of the most powerful beings in the multiverse, and as such, their cards are both extremely potent and usually quite expensive in terms of both mana and money
Prince John - Greediest of All strips your opponent of options while increasing your own, he simply needs to dodge early Grab Your Swords from cheap Shiftable options in Amber-Steel
Counterspells are most common in blue, and less common (and generally less powerful) in white and green
The Ezio Auditore da Firenze Borderless Scene card above is, so far, the only one of these to have been revealed