If Zalto is dealt damage by multiple sources at the same time (usually creatures blocking it), you will only venture into the dungeon once
Its a great showcase of the new Prepared mechanic, which allows an expert mage to come into battle with their signature spell
Notably, it will not double the number of counters put on a planeswalker from activating an ability
Who knew this game would have over 100 expansions one day
Red mana isn't just the attack-oriented color it also has a strong spell theme that it shares with its enemy color blue, which is what makes Izzet decks run
Theres a little competition from cards like Glare of Heresy and Revoke Existence that often do similar jobs, but I think well find that being an Instant is a lot more valuable than killing the few nonenchantment artifacts that see play and that there are enough nonwhite enchantments that you cant rely on Glare of Heresy to answer enchantments (though Glare of Heresy will keep seeing play, just not in a competing role with Deicide)