Being a flash threat is important because you can hold up mana, usually representing countermagic
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)
The blue side grants an ability that doesn't mention the creature's controller draws the card, and the white side's protection makes a creature mostly unblockable by colored creatures, so there's adaptability with the ebb and flow of transformations
But instead of protecting just three of your creatures, you can save all of them instead
Like many linear decks, Infect thrives in formats that least expect it
Grakmaw, Skyclave Ravager You can just look and see how many times +1/+1 counter shows up in the textbox of Grakmaw, Skyclave Ravager