Both are cards that dont do anything to further your independent gameplan, which is to say, if you didnt have an opponent, hate cards and efficient answers would have roughly no impact on the game
Theyre functional out of the box, but aside from a few pricey filter lands, theres little effort put into the lands
Dihada can literally be a 0 mana mill 4 that leaves a somewhat relevant planeswalker in play
In game, the card allows the player to sacrifice the card when it is in play to generate three managame resources used to cast spells (play cards from the hand)
Avenger of Zendikar can be a pricy mainstream card, whereas Khalni Garden, Assemble the Entmoot, and Nissa, Voice of Zendikar can be found off the beaten path
In the case of Jaheiras Respite, a mid-game attack that nets five or six lands might be the better long-term play, even if the damage it prevents is lower