as is, we must acknowledge that this otherwise amazing treasure card becomes utterly irrelevant after the first few turns
If a source you control would deal combat damage to an opponent, prevent that damage and each opponent mills that many cards
The flavour text, however, talks about how deadly it is, which leads me to wonder if it was initially supposed to have an effect more similar to Deathtouch or even poison counters
In Giselas case, thats double damage for any source damaging opponents or their permanents, and incoming sources of damage halving, rounded up
All these tokens youre creating benefit from anthem-type buffs like Intangible Virtue and Caretaker's Talent
Its a very entertaining collection of characters to see within Magic: The Gathering, especially with the cards all being based on real actors, which gives everything an almost uncanny valley feeling