Hail, Caesar is led by Caesar, Legions EmperorCaesar, Legions Emperor, a 4/4 Human Soldier for four mana that lets you sacrifice a creature when you attack to choose two of the three options below: Make two 1/1 Soldier tokens tapped and attacking Draw a card and lose a life Caesar deals damage to an opponent equal to the number of creature tokens you control So were looking to sacrifice creatures but also have as many creature tokens as possible
They'll neither win nor lose
The only spells that can be cast for free that are legal in Historic are Mindbreak Trap and Archive Trap, and both cards require your opponents to have done a specific action in order to do so
Fallen Empires gave us creatures with a shroud ability that could be activated with mana, and that was followed by Autumn Willow, a Homelands chase card (I know, that sounds funny to me too) with a static shroud ability pre-keyworded as cannot be the target of spells of effects. Magic replaced this with the slightly less stultifying hexproof, which is still just as obnoxious when youre sitting across the table from it
For this reason, alongside the card's roots as a part of Magic's first graveyard strategies, Animate Dead deserves to be on this list
Once you understand symmetric effects, they become some of the best tools you have at your disposal as a player