In Giselas case, thats double damage for any source damaging opponents or their permanents, and incoming sources of damage halving, rounded up
Despite that, if you are looking anywhere else online, keep in check that the card packs you are receiving are not tempered
You can also get additional triggers with the help of clone spells or cards like Deadeye Navigator, which more than makes up for the initial high price of casting Zegana
Without further ado, here are the Top 20 Most Expensive MTG Cards in Standard Right Now : #1 Sheoldred, the Apocalypse $75 #2 The Meathook Massacre (banned)- $38 #3 Mondrak, Glory Dominus $38 #4 Agathas Soul Cauldron $36 #5 Boseiju, Who Endures $35 #6 Cavern of Souls $34 #7 Roaming Throne $30 #8 Portal to Phyrexia $26 #9 Elesh Norn, Mother of Machines $23 #10 Ojer Taq, Deepest Foundation $23 #11 Vein Ripper $22 #12 Myrel, Shield of Argive $22 #13 Otawara, Soaring City $21 #14 Kodama of the West Tree $21 #15 Atraxa, Grand Unifier $20 #16 Bloodletter of Aclazotz $19 #17 Urabrask $18 #18 Sheoldred $18 #19 Beseech the Mirror $18 #20 Toxrill, the Corrosive $18 Those are the top 20 most valuable cards in Standard as of the time of writing
