Was it a difficult thing to implement
Does Affinity Stack
Let's take a dive in and see
Imagine you're playing Esper Control and you look at this opening hand: Temple of Enlightenment, Temple of Deceit, Polluted Delta, Swamp, Island, Negate, Dig Through Time This is a hand that you're thrilled to keep against an opposing control deck like Abzan or Blue-Black Control
Of course, in Commander games starting at 40 life, being able to drop it onto the battlefield in the first turn is going to be a pretty massive advantage
To a 2/2 that attacks twice and doubles damage, so effectively an 8/2) -Protection (You want him to be really hard to kill even though he has regeneration, plenty of removal still has "This creature cant be regenerated" slapped at the end of it