For starters, Bloodline Bidding only affects you, so theres no chance of inadvertently reanimating opposing creatures
Trading this away early gives you a bit of flood protection and even synergy with cards like Inti, Seneschal of the Sun or Currency Converter
It infiltrated peoples lives in a way that they probably didnt expect
Kirol, History Buff // Pack a Punch Kirol, History Buff is the worst kind of paranoid: theyre always prepared, but theyve prepared in a really shitty way
Commanders matter because not only do they dictate your decks colours and therefore the cards you can include in your deck, but much like the super-powerful companion mechanic, they are a card you always have access to
(It's put into their junkyard.) Down for Repairs targets both the opponent and the Attraction, if any