I know luck is unpredictable, but sometimes you get many of the same units/IV's that it looks that you have a certain pattern there. Like a character from a TV show in my country said: "¿Coincidencia o destino?" ("Coincidence or destiny?")
I ask this because I got pity-broken by a Linde in the Farfetched Heroes banner, I was happy because I wanted her but found out she was +Spd -Atk. Still viable with Aura and Blárblade (technically a Blue Nino).
Then, in the Radiant Dawn banner I got a Micaiah and guess what? +Spd -Atk. Mmm… I guess she still works against Cavalry/Armor.
Now, in the Spring banner I got a S!Catria in my free summon! +Spd -Atk, pulled the full circle, then once but stopped. I had a feeling, something told me to pull again and I got another S!Catria, two in 40 orbs! +Spd -Atk, again.
In L!Ike's Legendary banner, I got S!Robin, Takumi and Siegbert, 3 5* in a row with +Spd -Atk too.
So one of my patterns goes like this:
Step 1. Expect a 5* in 60 orbs approximately.
Step 2. High chance they're +Spd -Atk. Even higher if it's a Blue Tome user (broke the pattern with two +Atk Robin (M) and a neutral Morgan (F), then both S!Catrias appeared).
Some of my coincidences are as follows:
1. All my Lilinas were +Atk (even one as a 5*, +Atk -Def) until I got my 6th one with +Res.
2. I got three Felicias (+Spd -Def) in a row.
3. I got a +Atk -Res Corrin (F) and realized I had enough to +10. No Corrines have appeared after that and the same happened with Hana and Donnel.
4. All my Nowis were -Spd, even one I got as a 5* (I foddered her to Fae) until I got one (7th Nowi) with +Atk -HP.
5. I have Olwen and Reinhardt as 5*, both are +Atk -Res.
6. Days before I got Clive (neutral since he's a TT reward), I was pity-broken by a neutral Clair (his sister).
7. I got a +HP -Res NY!Takumi and I 5*'d a +Atk -HP Fae almost at the same time. Looking for NY!Camilla or NY!Azura, I got a +Res -HP NY!Takumi and a +HP -Atk Fae in the same session.
8. Robin (F) is neutral and I got a neutral S!Robin, my OG and LA Hectors are -Atk, OG and FH Celicas are -Spd (broke with a +Res -Def Celica), my most recent OG Catria is +Spd and I got two S!Catrias with +Spd.
Do you have some like these, even if it's very unlikely?