Lost a draft because the card Archaic's Agony ignored the fact i manually tapped 4 mountains + 1 plains to float mana to cast it, and exiled too many cards off the top of my library.

Expected behaviour:

Tap 4 mountains and 1 plains; Have 4 red and 1 white mana floating;
Cast Archaic's Agony;
Archaic's Agony gets cast with two colours for 2 damage.

Actual behaviour:
- Tap 4 mountains and 1 plains; Have 4 red and 1 white mana floating;
- Cast Archaic's Agony;
- Auto-tapper taps Potioner's Trove + U/R dual and does 4 damage;

This happened when I was 3/2 in premier draft and made me lose to self mill :'(
Gimme draft back pls