Beseech Aenigma

For each {r/g} in Beseech Aenigma's mana cost, you
may instead pay {2}.
Create a 3/1 red Elemental creature token with
haste if {r} was spent to cast Beseech Aenigma. Sacrifice that token at the beginning of the next
end step. The next time a creature you control
this turn dies, search your library for a basic land
card and put it onto the battlefield tapped if {g} was spent to cast Beseech Aenigma. Shuffle
your library afterward. (Do both if {r}{g} was spent.)