Capture the Knowledge

Draw X cards, then discard X minus 3 cards.
If you cast this card with the delve ability of at
least 5, discard X minus 5 cards instead.
Delve (Each card you exile from your graveyard
while casting this spell pays for {1}.)
Mklthd looked upwards into the stars, and it was
bestowed upon him. The full knowledge of the gods,
were suddenly his own. Their memories, his. Their
pains, his grudges.