Rakshasas Bargain Rakshasa's Bargain is a way to draw two out of four cards and put two cards in your graveyard, which can be the most important part of the card in the right deck
This enchanted card from Whispers In The Well is as beautiful as it is useful
Impulse draw was also flavored after her even from the beginning, so it is fitting she became the headliner for the mechanic for such a long time
Generally speaking, in decks that are three or more colors, you want to play almost all dual lands, along with enough basic lands to support whatever ramp is in your deck (Land Tax, Kodama's Reach, Rampant Growth, et al.)
Ivy, Gleeful Spellthief, Felix Five-Boots, The Thirteenth Doctor, Toski, Bearer of Secrets, and Tasha, the Witch Queen are all good options to copy with Spark Double, too