Krark's Thumb and Mana Clash interaction bug


When playing Mana Clash while Krark's Thumb is on the field, the log doesn't tell you what the opponent's coin flip is until _after_ you choose between _your_ two coin flips. However, Mana Clash states that both players flip coins _simultaneously_, meaning that all coins should be flipped and visible _before_ the player with Krark's Thumb chooses which of _their_ flips to ignore.

Locate the Mana Clash and Krark's Thumb implementations and the coin-flip resolution entry points, then reproduce the interaction described in the issue. Done means the opponent's flip is visible before choosing which of the player's two flips to ignore, with the log reflecting that order.

Written by the indexing model from the issue text.