Warren Recruits is my newest favorite card. Works great with spells matter / storm and lands-in-graveyard archetypes.
Source:
https://www.reddit.com/r/mtgcube/comments/revpgp/community_custom_cube_cards/
Rod of Seasons is my lands-in-graveyard type of
Trading Post. And a 2 mana Crucible of Worlds that does a little bit more is more what I want. Source:
https://www.reddit.com/r/custommagic/comments/4fjrc5/the_unofficial_cube_higher_power/
Constant Calamity is a
Sulfuric Vortex that I like better. Multicolored weakens it a little bit more and it is good for my discard / hellbent archetype. Source:
https://www.reddit.com/r/custommagic/comments/cexuno/alliterative_series_constant_calamity/
Rising Fauna plays really well. Is even a little bit oppressive in my cube so that is a thing. Source:
https://www.reddit.com/r/custommagic/comments/9ldp4a/the_moon_does_not_command_the_tides_the_fish_do
Enforce Conformity is the
Negate of
Oblivion Ring type of effects. It even hits non mana land abilities. Source:
https://www.reddit.com/r/custommagic/comments/e0h7q8/enforce_conformity/
Field of Morphose. Great art, works very well in lands-in-graveyard archetype. Too bad it doesn't help spells matter anymore but there is that. I made this design myself.
Ruins of Alexandria. I like this card much better than
Library of Alexandria. Perfect payoff for my hellbent archetype. I made this design myself.
Magmatic Swell. Isn't the most powerful card as it is difficult to cast but I really like the design of this card. Source:
https://www.reddit.com/r/custommagic/comments/9rzwx6/magmatic_swell