Since it gains counters whenever any creature leaves the battlefield, Haruspex is happy to sit back and watch your opponents kill each other before allowing you to deploy a gigantic threat
I think what makes the card fine for Modern is that the creatures are powerful enough to keep it in check, while it lacks Swords to Plowshares that Legacy has to let you protect Jace
The evolution from Abra to Kadabra to its final form of Alakazam is one of the more fun name transitions of the series while this card itself is one of the more fun to own
The -2 feels like a bite-sized Fact or Fiction, especially strong when you have recursion tools like Snapcaster Mage to reuse whatever you grab
If your leader is of the "Whitebeard Pirate" type, Ace gains Rush and can therefore attack from the turn it is played
Sauron, the Dark Lord ($13.97 Regular, $8.96 Showcase) A truly terrifying card to deal with Sauron, the Dark Lord does a lot of things amassing an Army, Ring temptation, and massive looting for four cards