For Competitive EDH None of these decks seem all that strong once you transition to higher power level tables, but well award this category to Hail, Caesar, if for no other reason than its just trying to get the table dead as soon as possible without fiddling around with gimmicky subthemes
This, however, has often existed alongside the game, rather than being the focus
The iPhone/iPad version sometimes doesnt work perfectly
When it enters the battlefield, it deals 10 damage to up to one target creature
You don't have to lose a card from your opening hand like Gemstone Caverns
When Unwilling Vessel dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on Unwilling Vessel