Flying, unblockable, fear, menace, all these evasion abilities help to make you more likely to gain a card from combat damage
Youll want big engine pieces like these alongside repeatable Proliferation like Grateful Apparition, and powerful one-shot proliferation like Experimental Augury
Fire / Ice and Cryptic Command are examples of these and both are much better than Charm in terms of power however Command costs to much to be an aid in screws and Fire / Ice is just so off the curve in power that it outright wins more games in a dull way than it does rescue games from the clutches of a screw
Jetsam - Entangling Eels #44 Disney Lorcana Trading Card Game Ursula's Return Uncommon Flotsam &
The more expensive, less random, Magic 2014 version is
Vaultborn Tyrant is a green dinosaur that draws cards, gains life, and is hard to kill