Black Cleaver rework suggestion.
Black Cleaver Brutalizer + Phage + 438g (3100g) +200 Health +50 Attack Damage +10% Cooldown Reduction Unique: +10 armor penetration Passive: Dealing physical damage to an enemy champion reduces their armor by 5% for 4 seconds. This effect stacks up to 5 times. Unique – Rage: Basic attacks grant 20 movement speed for 2 seconds on hit. Minion, monster, and champion kills grant 60 movement speed for 2 seconds. The movement speed bonus is halved for ranged champions.
I'm actually keeping the stats the same, just giving it the Rage passive and giving it 100g extra for that.
The reason I'm making this suggestion is because BC's current component as a basic Ruby Crystal seems odd and a bit "thrown in there". With Phage, which is also built from Ruby Crystal, its components become 2 mid-tier items and look better.
Another reason is that even with the component items, the current BC is still relatively expensive, at 1263g. Compared to BT, which is 1150g.
And finally, Phage may be used more often if this gets in, since people who don't use Triforce would never build it.