Except, she is Youmu. (Must... resist... "Who the Hell do you think I am?" reference...) She is the world's most lethal gardener. Perfecter of the world's only nigh-instantaneous 200-yojana hedge trimming technique. No explosive shrub would ever have the time to detonate.
So, Youmu can cut between 10000 and 16000 cubes, which is between 625 and 1000 chunks horizontally; around 78.125 and 125 chunks vertically (around 39.0625 and 62.5 in 1.2 apparently)
Gah! said: So, Youmu can cut between 10000 and 16000 cubes, which is between 625 and 1000 chunks horizontally; around 78.125 and 125 chunks vertically (around 39.0625 and 62.5 in 1.2 apparently)
That's a lot of cubes...
Especially when you realize that she's cutting 10,000 or more cubes in 2 frames (2/60th second, 0.0333.... second)
Youmu can drop the blocks she's carrying, pull out her swords, go to town on the Creepers, re-sheathe her swords, and then catch the blocks she dropped before they hit the ground.