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A creature with first strike hit me twice because the effect giving it first strike was destroyed during first strike damage. Human opponent had a Blade Splicer and the 3/3 Golem token equipped with Trusty Machete. I had a Porcelain Legionnaire with a +1/+1 counter from Anafenza, Kin-Tree Spirit. Opponent attacks with both creatures, and I block the Blade Splicer with the Porcelain Legionnaire. First strike damage happens, I take 5 damage, Blade Splicer dies from damage from the Porcelain Legionnaire, meaning the Golem no longer has First Strike. Then in normal combat damage, the Golem should not deal damage because it has already dealt damage this combat, even though it no longer has First Strike. I instead took 5 damage again from the unblocked Golem.

Faces of the Past did trigger but it didn't even let me choose to tap or untap all the creatures that share a type only a couple of times it did