A mass-blink spell, like Eerie Interlude, can earn you tons of value from zone change triggers, and its one of the few instants that can deal with a Farewell, but since your targets dont come back immediately, you cant make great use of it on your own turn
Unstable Amulet's second ability counts any spells cast from zones other than your hand
Speaking of those two, theyre the reason Krark, the Thumbless isnt higher on this list, as that pair of chaos commanders is easier to build around than Krark
You may cast that card by discarding a card rather than paying its mana cost
The choice of your commander has a significant impact on a deck, dictating the color of cards that can be included within a deck whilst serving as a reliably accessible card that can be accessed each game
Grade standout SIR/IR cards now while theyre affordable