Before I go into what I have found to work with Durant, I want to talk about what wont work with Durant in BLW-on
The earlier Gaeas Cradle comes into play, the more mana it yields: on turn 1, itll produce 1 mana, but starting from turn 2, its value scales depending on how quickly you can flood the field, and by turn three, youre looking at an income of maybe four mana or higher
For 4 mana, this 3/3 enters the battlefield and lets you search for an instant or sorcery card with mana value 1
Sami's Curiosity Now this is a solid common
The so called "foil loophole" is especially interesting and might be the easiest way to solve our current Reserved Listdriven price problem
An anecdote printed in an early Magic: the Gathering tournament rule-book related the story of a play-tester who was inexplicably winning almost every game