On a recent PVP game my opponent used Rommel+Hetzer (he promoted one of them...forgot which) on the second turn (his first).
In the next turn when i was going to cast Flying Tigers...i saw that i had still 50 life (i check life before casting Flying Tigers...its only free when you are losing...it probably was 50 since the start).
There is no way this is possible...i have no player protection card...and Rommel is unblockable...
I don't remember all the details...i was "multitasking" at the time...