Got alerted that Emry, Lurker of the Loch + Jeskai Ascendancy + 0-cmc noncreature artifact that bins itself (e.g. Mishra's Bauble, Tormod's Crypt, Welding Jar, double Mox Opal) is both infinite pump and infinite looting, and the double Mox Opal variant is also infinite mana. Get hosed by Stony Silence and friends, and at least the double Mox Opal variant can loot into anti-hate. Substitute Paradox Engine for Jeskai Ascendancy and all you get are the infinite spells, the infinite mana part with double Mox Opal, and the draw-your-deck-next-turn part with Mishra's Bauble.
The Great Henge's draw is mandatory, so be careful out there.
An all-Goblins take on the same thing is Grumgully, the Generous + Persist Goblin (Putrid Goblin/Murderous Redcap) + Sac Outlet Goblin (Skirk Prospector/Sling-Gang Lieutenant). Infinite red mana at the very least, infinite life drain at best.
Got alerted that Emry, Lurker of the Loch + Jeskai Ascendancy + 0-cmc noncreature artifact that bins itself (e.g. Mishra's Bauble, Tormod's Crypt, Welding Jar, double Mox Opal) is both infinite pump and infinite looting, and the double Mox Opal variant is also infinite mana. Get hosed by Stony Silence and friends, and at least the double Mox Opal variant can loot into anti-hate. Substitute Paradox Engine for Jeskai Ascendancy and all you get are the infinite spells, the infinite mana part with double Mox Opal, and the draw-your-deck-next-turn part with Mishra's Bauble.
Careful with your card mentions: neither Aminatou nor Vela are Modern-legal.