The counts are an automated, heuristic read of card text a fast starting point, not a final verdict and categories can overlap (a card that draws and ramps counts in both)
The idea is simple: Throw down Slicer, likely converted as Slicer, High-Speed Antagonist to save some mana, slap on some equipment like Sword of Fire and Ice, Commander's Plate, and O-Naginata, then pass Slicer around the table and watch it shred your opponents life totals like a block of cheddar
Compare Sedge Troll with Sedge Troll "Alpha "Oops..." III"
Especially not when it's conditional like this, where you need to stick a Shift target to the board
If the creature or planeswalker isn't a legal target as this spell tries to resolve, it won't resolve
How much does Frodo, Adventurous Hobbit cost