The expansion includes the return of Trainer's Pokmon, a gameplay mechanic originally introduced in the Gym Heroes expansion
Some of the funniest cards/coolest designs from the @goodgamery FAKE Rivals of Ixalan leak
There was definitely a period of time where I noticed my play patterns with the card were actively sabotaging my land drops later in the game, and during the early days of Commander, where big, splashy spells were king, I wrote Land Tax off as being more trouble than it was worth
Graders use an empty slab to see what the card will look like in the slab
There are plenty of ways to put Ashnod's Alter to good use, with plenty of combos capable because of its ability
While he may cost three which is quite a lot of mana for ramp he does at least tap on the turn he enters play and also lets all you existing guys do the same