Weakness: Water (x2) Resistance: none Retreat: 3 #166 Starmie V Water HP190 Basic Pokemon [C][C] Swift: 50 damage
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)
Loot, the Pathfinder is a relevant haste body that can dish out extra damage, kill a guy, draw three cards, or even generate more mana
The original ATK of that monster is halved until the end of this turn
Ratio: Play 3, no questions asked