Regrettably, Tithe is on the Reserved List, so it is ridiculously expensive for the effect you get, but if you want an inexpensive alternative that is slightly watered down, Gift of Estates plays reasonably well, trading instant speed and doubling its mana cost for a guaranteed 3 plains cards
This can make Cresselia a sponge, but after three Energy and other Pokemon to set up, why would you ever attach more Energy to it
To quote MaRo, [I]f we were going to shift to a Two-Block Paradigm, we wanted the second block to feel just as special as the first block. He went on to say, [O]ur goal was to make the second block of the Magic year feel the same as the first block. The two blocks were to be equal, and for a while, they were
Saheeli just keeps copying Felidar Guardian, which just keeps blinking Saheeli
A commander all-star, priced fairly at over $20