This card is good in quite a subtle way
With Tergrid's effects, it fits into any forced sacrifice or discard decks, as it's a way to get around the downside of often being one-for-one trades by putting them on your side of the battlefield or having a static ability to force the sacrifice and discard
Importantly, it doesnt matter if the permanent card that was put into your leaves for any reason, perhaps via a Reanimation effect, you still Descended regardless
Myrel, Shield of Argive Myrel, Shield of Argive is a 3/4 Human Soldier that stops your opponents from casting spells or activating the abilities of Artifacts, Creatures, or Enchantments during your turn at a cost of
Your odds of drawing it, playing it, and having an informed opinion of it are very slim
But split second isnt just an ability that says that the spell cant be interacted with or stopped, it specifically mentions casting spells and activating abilities