At the end of the assault phase, note the number of kills made by the Blade of the Relentless add it to the total killed by the blade and compare to the chart below. These effects are cumulative and last for the rest of the game.
1+ Kill +1 S 3+ AP2 5+ +1 S 10+ Instant Death
Building an army? Create, validate and share your list with New Recruit, army builder for Warhammer 40,000 7th Edition and many more games.
Try the builder