This creature can't be blocked by more than one creature
Played right, this convoke deck can quickly overwhelm your opponents (though keep an eye out for board-wipes, which could really set you back)
A black-red hybrid card, for example, is playable in blue-black, black-red, and red-green
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)
Prologue to Phyresis - The first step is to give everyone poison counters