Tireless Tracker [c]Tireless Tracker[/c] doesnt directly draw you cards, but it creates Clue tokens, which can later be sacrificed for cards, which is almost as good
Merfolk were one of the Lorwyn tribes that also have kindred spells
If your goal is casual play or playtesting, proxies can be a reasonable alternativeas long as they are clearly disclosed and used ethically
You can also sort your cards into groups according to the prices you find
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)
Villainous Wrath Villainous Wrath feels like a metagame choice