Downsides: doesn't get updates for new sets very quickly and uses non-standard set names, lacking most foreign cards
All you need is that haste enabler or something like Thousand-Year Elixir so you can play her, tap, bounce her and do it again without worrying about summoning sickness
*This product also includes reprints of some cards from the "Pokemon Card Game Scarlet & Violet" series
25 Spells Engineered Explosives Mishra's Bauble Deathrite Shaman Elves of Deep Shadow Traverse the Ulvenwald Thoughtsieze Fatal Push Grim Flayer Tarmogoyf Bitterblossom Satyr Wayfinder Grapple with the Past Collective Brutality Grisly Salvage / Vessel of Nascency Smuggler's Copter Abrupt Decay / Dissenter's Deliverance Liliana of the Veil Maelstrom Pulse Eternal Witness Recurring Nightmare Ramunap Excavator / Jadelight Ranger Ravenous Chupacabra Ishkana, the Grafwidow Nissa, Vital Force Emrakul, the Promised End 15 Lands Mostly you want to keep a delirium deck pretty streamlined
This gives players a ton of deck-building freedom and affords many opportunities to play classic cards and nostalgic favorites
If you run this card in a Grixis shell, you should have no shortage of rituals and cantrips to ensure that once Infernal Sovereign resolves, youre going to keep drawing cards and casting spells