The idea is to use Auras and Enchantments to get your foes fighting anyone but you, while still having some solid creatures to attack or defend when you need to
The Unicorn provides card advantage and helps guarantee you fill out your curve, but at a mediocre rate
If you cant beat them, you should join them - and you might as well become the annoying player in this case
They think theyre pulling you along for the ride for second place, but if your late game is better, the tables will turn
The appeal to the card is quite obvious, especially after Smugglers Copter has dominated Standard over the last couple months, but Heart of Kiran has its downsides as well, the biggest of which is being legendary
His top level is a savagely powerful game ending threat and his middle level is a very healthy midway point between the others