If it's a Siege, it will still be exiled when the last defense counter is removed from it, and its controller may still cast it transformed without paying its mana cost
The keyword abilities Descend Four, Descend Eight, and Fathomless Descent are similar to the Descend mechanic in that they care about permanents in your graveyard
While the "ease of flipping" category is, in large part, a product of the number of defense counters on the battle (battles range from three to seven defense counters, and a battle with three defense counters will be much easier to flip than one with seven), it also takes other factors into consideration, like whether the battle makes creatures (if so, we can use them to help defeat the battle, making it easier to flip) or whether the battle acts as removal (which can get a blocker out of the way, making it easier to attack and defeat the battle)
Most Wanted | OTJ Commander precon: Decklist, new cards, reprints Last but not least: Most Wanted, a Mardu tribal deck that revolves around outlaw creatures, which include Assassins, Mercenaries, Pirates, Rogues, and Warlocks
5 Gideon, Ally of Zendikar Once a Standard powerhouse, Gideon, Ally of Zendikar is well remembered for his ability to bash down opponents despite not even being a creature
