I think its slightly worse than Inferno Titan in direct comparison
the best way to discover what Magic has to offer, they're perfect for building decks, playing games with friends, and are tons of fun to open #16
It answers nearly every creature and planeswalker in Modern for just one mana, provided you have delirium
Rare Land Cycle Having more untapped land options for multicolor decks is never a bad thing, and Duskmourn: House of Horrors introduces a new check land cycle in the rare slot
Finally, Rooftop Bypass generates Assassin tokens with Menace, which is perfect for triggering Freerunning, and also for Ninjutsu, a mechanic that pairs well with the Assassin card type in general
Gisa can thrive in any deck packing lots of creatures with those types, but its her crime trigger that really makes her incredibly strong