Everything is a one-for-one trade (most of the time), but Tinybones, Trinket Thief replaces the card you used to force a discard at the cost of one life
The Blaines Charizard 1st Edition misprint is highly desirable because of its rarity and popularity among collectors
A couple weeks ago in my Evaluating Oath Spoilers series, I noted that chaining Oath of Gideon into Gideon, Ally of Zendikar himself lets you keep Gideon around after he makes an emblem
Its passive ability to mill each player can benefit you in small ways such as turning Chemisters Insight face up, but it also gets Drown in the Loch online much faster and more reliably
You will also need (and we can't stress this enough) sturdy, weatherproof storage for your cards, decks, binders, and so on
Id never cut this from Anhelo, but I recognize that its much more aimed at sweet EDH than competitive EDH. Red Audacious Swap is a strong Chaos Warp variant