artificial intelligence

indestructible
at the start of your upkeep, you gain 1 knowledge counter.
for every knowledge counter you have, artifacts you control cost {1} less to cast.
for every 2 knowledge counters you have, non-artifact creatures cost {1} less to cast.
artifacts you play cost {x} (divided by 2) more, where {x} is the number of lands you control.
(rounded up.)