two watchtowers in hand, opponent plays Mountebank, log reads:
L
plays a Mountebank
.
e
gains a Curse
.
e
reacts with a Watchtower
.
e
trashes a Curse
.
Watchtower loses track of Curse (it moved).
Watchtower loses track of Curse (it moved).
e
gains a Copper
.
e
reacts with a Watchtower
.
e
trashes a Copper
.
Watchtower loses track of Copper (it moved).
Watchtower loses track of Copper (it moved).