Ancient Scriptures

When Ancient Scriptures enters the battlelfield,
put X Scripture counters onto Ancient
Scriptures where X is half of the life you payed
plus twice the amount of mana you payed to cast
this spell. Then you gain infect counters equal
to half of the Scripture counters on Ancient
Scriptures rounded up.
When a player attacks you, they may pay life
equal to the number of Scripture counters
on Ancient Scriptures. If they don't, create
that many 1/1 colorless phyrexian creature
tokens with infect.