It's great in creature heavy builds like Aggro, Tokens, Hate Bears, Artifacts, Midrange, and more
Turn it face up any time for its disguise cost.) If a creature you control with deathtouch deals combat damage to a player at the same time it's dealt lethal damage (perhaps because it has trample and was blocked), it will die before Aveline's triggered ability resolves and puts +1/+1 counters on it
This will make you very scary at the table as a curve topper
It would all have been well, if the Honor Guard didn't start tracking it - now the spirit will try to posses someone and escape to have a "normal" life elsewhere
Grade: C (with the prospect of it going up or down a full grade) Guard Duty cards tend to be weaker than they look
Of course, if the cardboard prevents you from seeing the light through the card, it's also a sign the card is fake