The power level for this set actually seems lower than Throne of Eldraine's to me, but that won't prevent us--or me--from making Top 10 lists for Ikoria anyway! As tradition, here's my Top 10 Ikoria Cards New to Modern, though feel free to make your own lists for any format or reason you want, including Modern:
Lurrus of the Dream-Den: Yeah, I know, she's better in Legacy, but her nifty recursion ability has to help her win games Emry, Lurker of the Loch-style in Modern as a member of the 60. Modern is also capable of making her a Companion with some deck-building sacrifices, though I've personally found Companion a bit overrated because the Companion dies to removal so easily and is obviously telegraphed. Even doing things as humble as recurring Mishra's Bauble wins games, though.
Bonders' Enclave: Hey, at least Eldrazi decks such as Eldrazi Tron and RG Eldrazi will appreciate this card.
Mythos of Nethroi: The Abzan colour combination is fairly unpopular in Modern right now, but 3 mana to destroy target nonland permanent for them cannot be denied.
Kaheera, the Orphanguard: Despite how awkward she is to cast in Modern Elementals decks, they ARE going to want a lord that's always in their opening hand. I've never found Phantasmal Image to be that good in aggro decks, anyway.
Kinnan, Bonder Prodigy: This guy is like Duskwatch Recruiter who demands blue mana but is absolute nitro at cheating out creatures in return. With his mana-doubling ability, activating him on Turn 3 is realistic.
Song of Creation: See above, though this is more like Experimental Frenzy with a greater chance of comboing off in the right build. I still haven't made a Cheerios deck with this consistent enough, though...
As im exitting Magic, im not too familiar with the set.
I just wanna say that i really really like Vivien. Reach is so relevant. & she goes outa control quickly with soo many creatures she calls ! Noone else does it @ this rate. Though her -2 is not for me.
Lukka is also super attractive with that +1 !
Possibbly 3 new creatures. If not, filter out the bad draws. Sick.
Narset is utter trash though d:(
"Cancel Culture is the real reason why everyone's not allowed to have nice things anymore." - Anonymous
"For what will it profit a man if he gains the whole world, and loses his own soul?" - Mark 8:36
"Most men and women will grow up to love their servitude and will never dream of revolution." - Aldous Huxley, Brave New World
"Every life decision is always a risk / reward proposition." - Sanjay Gupta
For standard, I really like Titans' Nest.
Step 1: Gum up the board with self mill etb creatures
Step 2: Uro/This enchantment/Tamiyo
Step 3: Konrad and then exile your yard with this enxhantment, or just pop out a Nethroi apex
You can sometimes cast Konrad AND mutate Nethroi onto him if u have bbbbg on turn 5, bring back every creature in your yard cuz they're all walls or mire Triton's, mill ten more and probably max out at about 50 damage that a leyline can't stop.
Effect: Exile a creature. Add 1 tour your Mana pool. EACH opponent takes 1 damage.
That card ramps Konrad to cost just bb. Then it closes the game with instant triggers of konrad
Sultai self mill isn't ever competitive, but it's fun and there's so much text on Konrad they don't realize that 15 go is the red zone
Tested Titans' Nest and Shark Typhoon in the same Modern BUG Control deck (the other payoff right now is Striped Riverwinder) and they'll both end up in honourable mentions. Titans' Nest is quite possibly abusable in the right deck (although being hard to protect with counterspells if you play it when you have 4-5 lands hurts, and it often felt like the worst card in the deck), and Shark Typhoon is quite flexible in Titans' Nest builds and likely quite good against Teferi, Time Raveler.