The hardest to beat are those with targeted discard and cheap removal, since they can break up our Rogue synergies and deal with Tarmogoyf at parity
(See, I told you there were some obscure jokes you might not have gotten.) While everyone notices the Giant Fan blowing the people out of the art, some don't see that it's also affecting several other aspects of the card (name, mana cost, card type and expansion symbol)
While this is a bad practice in principle because youll almost always get less value from your cards than what you probably paid, it's the only way to get tix credit to then spend towards new cards
Because the spell becomes a token, the token isn't "created." Effects that care about a token being created won't interact with a token that enters the battlefield because Wyll's Reversal copied a permanent spell
It's a great card to use with goad commanders like Gix, Yawgmoth Praetor and Edric, Spymaster of Trest that encourage your opponents to attack each other instead of you