The cards must specifically mention "Black Luster Soldier". It doesn't count if they mention a "Black Luster Soldier" monster. It must be the original one.
The only monsters that count right now are the og BLS ritual, new BLS ritual monster, 2 small knights BLS, Super Soldier Soul, Charging light gaia, Arisen dark gaia from ex structure, and Magician of chaos ritual monster from ex structure.
Only monsters count, so you need 6 different ones from the above lineup , while having 9 or more total. Bls Envoy doesnt count.
Ignore the comment about cards that specifically mention BLS. That's nonsense. Your problem is that BLS Envoy doesn't count as the anon above already mentioned. Only BLS Ritual monsters count.
Meanwhile super soldier rebirth CAN'T summon a ritual BLS monster, although it states"ignoring the summoning conditions" so you have to run a few more bls monster to make it work, in other words, welcome to brick festival.
If I’m understanding correctly you need 6 black luster soldier ritual monsters and 9 black luster soldier cards (cards that list BLS in card description). This skill is a lifetime achievement, I think the expectation is that older players who already have 3 BLS can work towards getting 3 of the new BLS in order to use this skill. But it’s an extremely expensive deck then.
As it seems they fixed the old bug where you couldnt summon a bls ritual monster. Despite that, the skill is garbage. Running 6 bls ritual monsters is way too much. 3-4 would be more than enough since you will also run the field spell. But yeap, dont bother with this deck. 99% your bls will be flipped f/d or returned to hand once summoned. Also, you instant surrender vs melodious decks.
u can collect 6 type monster with bls to activate the skill. so u just need evening,beginning,envoy,2 diff gaia with bls, and bls super soldier. 3 more u can add more diff monster with bls (if u have) or the spell/trap bls related.