Mirage, Tempest, and a multitude of sets that have come since, have all been modeled in the mold that was set forth by Ice Age
For big legendary creatures, Im throwing in Aurelia, the WarleaderAurelia, the Warleader, Gisela, Blade of GoldnightGisela, Blade of Goldnight, and Elesh Norn, Grand CenobiteElesh Norn, Grand Cenobite
Jared the Awesome, this three-drop 3/3 with three Naya colors is great as a leader of your Commander deck in a Monarch Matters brew
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) This creature gets +1/+1 for each land you control but don't own
This usually isn't a problem for me, but since we have such a small card pool to work with, I don't think the deck functions to a level I'm satisfied with if you don't shell out that $$$ for Inexorable Tide and Contagion Engine
I recommend the Against the Odds video series, in which Magic content creator SaffronOlive builds decks around unusual and creative ideas and tests them on Magic Online and Arena