Multiple hourglasses can be used to reduce the waiting time further, but once a pack is opened, it will go back to 12 hours
With Ajani, the Slasher takes the opponent from 20 life to three life: Slasher deals two, putting the opponent to 18
Either your card advantage will help you win the game before Phyrexian Arena squeezes the last points out of your life total, or you can offset this life loss by playing cards that gain life
This flexibility also carries over to deck construction, opening up access to a lot of potential builds since your flicker spells will primarily be reserved for your commander, meaning you dont have to build around a lot of ETB effects to take advantage of Pramikons payoff
It's almost legendary in its might for the era and as such is repeatedly referenced in sets over the years
Conversely, many Poison-type Pokmon are now Dark-type, and that's only one example of how this type has constantly reconfigured in the Pokmon trading card game