Now that Gruesome Grave Squirmer is in the graveyard, you can activate its effect to summon back out Spirit of Yubel, which you destroy using Unchained Soul of Sharvara's effect to summon itself
It only costs one mana, so Dragon's Rage Channeler can start making an impact as soon as the game starts
Sadly you cannot fix this simply by adding "draw a card" to such things as drawing a card is so powerful, it is a major change not a minor one
But color identity isnt about the sum total of what you can and cant do, its about where you tend to live
In Abzan, we have lands such as Sandsteppe Citadel, Blossoming Sands, and Jungle Hollow
On any of those websites you can find buttons that export into the MTGA format