I was thinking a bit more about Jeska's Will.

An added bonus of this card is that prior to it, I was running a Rite of Flame in the sb. What this did is allow you to have a play like.

Seething song -> Bonus Round -> LED -> Burning Wish -> crack RRR in response. Get Rite of Flame and something else. (Usually it was Hazoret's Undying Fury)

Now the deck can run a much more versatile sideboard slot in Jeska's Will, which in almost all cases will allow for that same play. It also now allows you to get an effect of a draw spell, and something you can just Wish for on turn 2.

Getting the 4th rite of flame in the maindeck is huge as well. (which doesn't really need an explanation)

I would propose the following list for testing.

// 12 Artifact
4 Lotus Petal
4 Ruby Medallion
4 Lion's Eye Diamond

// 2 Creature
2 Simian Spirit Guide

// 9 Instant
4 Manamorphose
4 Seething Song
1 Desperate Ritual

// 14 Land
4 Ancient Tomb
4 Sandstone Needle
6 Mountain

// 21 Sorcery
4 Rite of Flame
4 Burning Wish
2 Past in Flames
4 Bonus Round
4 Act on Impulse
3 Jeska's Will
2 Hazoret's Undying Fury


sb would have at a minimum:

1 grapeshot
1 tendrils of agony
1 empty the warrens
1 jeska's will
1 past in flames

and then there's some which are almost always going to make it into the sb
1 cave-in
1 by force/shattering spree
X defense grid/blasts/empty the warrens