There are plenty of creatures that have powerful effects when your creatures die, such as Blood Artist, Zulaport Cutthroat, Pawn of Ulamog, and Pitiless Plunderer
Modern Masters 2017 Archenemy: Nicol Bolas Commander 2017 Quite a few reprints here
Jafar Lamp Thief While undeniably an intriguing card, Jafar Lamp Thief has a less desirable ability than a similar three-cost character, Maleficent Sorcerers
Increasing the cards value was the fact it had been graded at a perfect Gem Mint 10 condition by card condition specialist PSA, indicating a card in virtually flawless condition on its 10-point scale
Overall, in post-board games I would still follow a pretty similar regiment to the pre-board games, with the added caveat that you probably want two pieces of disruption to try to navigate through your opponents hate, but can likely afford to keep a hand that is missing one of the components if its one of the ones you have more of you still wouldnt be able to keep a hand without Entomb or Faithless Lootingg (unless you brought in Show and Tell)
If Nissa is no longer on the battlefield at the time her first ability resolves, use the number of loyalty counters she had when she last existed on the battlefield to determine the value of X