If G'raha Tia and one or more other creatures and/or artifacts you control die at the same time, its last ability will trigger once (as long as it hasn't already triggered this turn)
You reveal five, a foe separates them, and you draw one stack, so this is a guaranteed three of the worst cards or two of the best whichever makes sense
Since it isnt an activated ability it cant be Stifled
It comes in at seven mana, draws seven cards, deals seven damage, and even has lifelink
Cloud, Ex-SOLDIER (Limit Break) Cloud, Ex-SOLDIER leads the red-green-white Limit Break deck that focusses on equipping weapons, raising your stats past 7 power. Thematically, it ties well into Final Fantasy 7 and its Limit Break system, with the deck allowing you to buff your creatures with equipped weapons, and then gain certain abilities based on this power
While it may be your first thought that those abilities wouldnt work if the creatures name changes because of a mutation, it actually does