Shining gyarados woulda made my top 5 if I had it in my collection as well
If, during a player's declare attackers step, a creature that player controls that's been goaded is tapped, is affected by a spell or ability that says it can't attack, or hasn't been under that player's control continuously since the turn began (and doesn't have haste), then it doesn't attack
Well, the fact its a little slower to come down means its maybe less good in the Command Zone for cEDH min-maxing, but it will see play in the 99s of both that and Winota, and its still a very viable option for more casual tables
Professor Oak The only thing better than drawing one card is drawing seven
Its rules text is simple with just a triggered ability and a bundle of good keywords, and you can tune the deck to different power levels and budget levels