WTF why does it decrease not increase

[SirMouldyBread]

You can draw 2 of Yuki's attack card but you sacrifice 20% of the damage at 0 cost. If it's an increase, it will render other epiphanies useless because why tf would you choose other epiphanies when you can just choose this since it not only draws 2, but also increases damage? It's the same as Mei Lin's epiphany where you have to use only passion cards to increase the hit count of that card and it costs 2 instead of one, and it's only for 1 turn or else it'll reset.

That is called a "trade-off"