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
+ Untap all creatures you control
Any spell or ability that targets the permanent with ward prompts the tax payment or its countered
Imagine Tree of Perdition or Guard Gomazoa shredding decks instead of defending
More likely Dungeon Cards start in the Command zone or a special Dungeon Zone
A few turns into a commander game this guy just states that hes swinging for lethal with nothing on his board and in the same breath throws his playmat off the table to reveal 20+ cheatyfaces he had his underneath his playmat while no one was looking you can only cheat cheatyface into play from your hand though, and you cant play more than 1 in EDH Thats not how cheatyface works