I have no idea what this should cost or what colour it should be so give me a break please. But I'd like some sort of pay life to get opponents (and ourselves) to draw and discard cards so everyone gets warped hands. I don't think it needs to be random maybe they can choose which cards to discard so everyone gets stacked hands.
The Book of Replenishment (Rare) 1BR
Enchantment
*Anyone can use this ability, it may only be used at the time a sorcery can be used
Pay 2 life or sacrifice a permanent: Each player draws a card and then randomly discards a card
What you have there is a BlueBlackRed card. Black because you are paying life or sacrificing permanents to draw. Blue because of the way you are drawing; draw then discard. Red because you are doing it randomly. The activation limitation goes at the end of the ability it is limiting.
If you drop random it is now Blue Black. If you reverse the draw discard it is red black.
The Book Of Replenishment RB
Enchantment
Pay 2 life or sacrifice a permanent: Each player discards a card, those that do, draw a card. Any player may activate this ability but only any time they could cast a sorcery.
This card ranges between crazy broken because of Dredge and Dredge like strategies or near worthless because you are trying to use it fairly/funly.
I specifically wanted them to draw first then discard. I was thinking about combo'ing it with Liliana's Caress. Other than that I like what you proposed.
EDIT: Now that I think about it this would be better:
The Book Of Replenishment(U/B)(U/B)
Enchantment
Pay 2 life or sacrifice a permanent: Each player draws a card, then discards a card. Any player may activate this ability but only any time they could cast a sorcery.
EDIT#2. Just realized this isn't viable due to simple infinite life combo or infinite mill if you look at it that way too with Sangromancer. Therefore I'll edit it to be simpler:
The Book Of Replenishment(U/B)(U/B)
Enchantment 2 or Sacrifice a permanent: Each player draws a card, then discards a card. Any player may activate this ability but only any time they could cast a sorcery.
The Book of Replenishment (Rare)
1BR
Enchantment
*Anyone can use this ability, it may only be used at the time a sorcery can be used
Pay 2 life or sacrifice a permanent: Each player draws a card and then randomly discards a card
If you drop random it is now Blue Black. If you reverse the draw discard it is red black.
The Book Of Replenishment RB
Enchantment
Pay 2 life or sacrifice a permanent: Each player discards a card, those that do, draw a card. Any player may activate this ability but only any time they could cast a sorcery.
This card ranges between crazy broken because of Dredge and Dredge like strategies or near worthless because you are trying to use it fairly/funly.
EDIT: Now that I think about it this would be better:
The Book Of Replenishment (U/B) (U/B)
Enchantment
Pay 2 life or sacrifice a permanent: Each player draws a card, then discards a card. Any player may activate this ability but only any time they could cast a sorcery.
EDIT#2. Just realized this isn't viable due to simple infinite life combo or infinite mill if you look at it that way too with Sangromancer. Therefore I'll edit it to be simpler:
The Book Of Replenishment (U/B) (U/B)
Enchantment
2 or Sacrifice a permanent: Each player draws a card, then discards a card. Any player may activate this ability but only any time they could cast a sorcery.