If the format's full of decks that can threaten to win on turns five or six, that's a very fast format
And since it has those symbols, it has the Five Color identity, which limits it in Commander, but it is very strong as a leader, and with every card to choose from that's been printed, this should dig pretty deeply into your options
First, if an opponent counters the Dragon, the sacrificing still happens
In digital, as games unfold, we could more easily remember which player had played first and which had drawn first
All of the card games basic rules are still here
Having cards that can be cast in two different ways, often at different prices, makes them a lot more flexible than cards that can only do one thing