Scenario 1: There are x amount of 4/4 undead characters on the board and a 2/2 zombie scavenger. If this group gets hit with a Yuanshi's wrath they all die.
Zombie scavenger card reads "Whenever an undead character you control dies, Zombie Scavnger gets +2/+2
Scenario 2: Regular Sol is sitting with 4 hp and there are x amount of 2/2 angels on the board. If this group gets hit with a Yuanshi's wrath Sol stays alive and turns into his evolved form.
Sol card reads "When an angel you control dies, Sol Ascends. While Sol is ascended, he attacks an additional time each turn and has two lives."
My first question is why are these 2 cards that have basically the same card description resolving differently? Secondly how is the damage dealt with aoe spells? Is it random .. does yuanshi's wrath effect one side of the board first before the other? Does it hit the battlefield before support or command zone?