One of the best benefits of World Breaker is that it just keeps coming back, turn after turn, so long as you have the lands to sacrifice, and the colorless mana
Which makes this one pretty easy to pick, in my mind, even if we're letting the more popular blue version stand in for the green one you're much more likely to be playinggreen one you're much more likely to be playing
In fact, the performance itself was strong enough, and in some cases, it was possible to have a fund deck that actually won by placing Emrakul, Eternal Ruptor on the library with Liliana Beth 's ability and hitting it
It will not trigger if a creature became blocked as a result of some kind of effect, not by creature
it will just be blue until end of turn
Explore fully resolves first and you draw a card, perhaps a land youll play later