As long as you can attack or tap Abdel, youre guaranteed a flicker that makes tons of soldiers and gets you a bunch of ETB triggers
You can also put a +1/+1 counter on Krrik whenever you cast a black spell
Then you can tap her with a green mana to make mana equal to your highest power, and with an X spell Hydra like an 7/7 you have already you now convert one to 7, and drop an 13 with that mana for the next one, draw and then have 13 even more and can win fast with their size or make enough mana to win with stuff like Staff of Possession, Fireball and other stuff
Well, a few more than 20, but green always gets to have its cake and eat it
Slaughter is a perfect card to pop in the deck too it not only delivers some really targeted removal but also triggers Yshtolas damage-dealing ability thanks to its mana-cost and allows you to draw a card when you decide to buy it back for 4 life
Aim near the last sold comp for NM/M, add a small margin for mint condition