The SV3 Charizard ex SAR, as the definitive modern Dark-type Charizard, is well-positioned
Bahamut is deeply invested in the affairs of mortal creatures, especially when they fall victim to the machinations of Tiamat the Dragon Queen and the evil dragons that serve her
4 Arthur - King Victorious 221/204, Steel Arthur holding Excalibur aloft is a triumphant scene that's been depicted countless times throughout history, so taking it on even in the context of a card game isn't something to be taken lightly
If that player doesn't, you mill X cards, where X is the number of influence counters on Palantr of Orthanc, and that player loses life equal to the total mana value of those cards
If I happen to have Nissa's Chosen in play and it dies, then there are two relevant replacement effects: Stone of Erechs (that would exile it instead of letting it go to the graveyard), and Nissa's Chosens own replacement effect (that would tuck it back into my library)