Though the six do vary in terms of strategic offerings, all Amazing Rares are subject to the following: they are Legendary or Mythical Pokmon, Basic, and require three different types of Energy to use all of their attacks
If a creature loses vigilance after it attacks (perhaps because Esika leaves the battlefield), that creature will continue attacking
It also doesn't stop mana abilities from being activated
Your opponents will try to take your big mana commander down whenever they can, so getting to untap with Jodah, Archmage Eternal and keeping it on the battlefield require protective countermagic or some ways to give it hexproof
When he could no longer carry on, he imparted his strength to the one who took up his duty
Blasphemous Act is a classic in Commander games and can help even out the playing field if your opponents have built threatening battlefields