Doomskar Titan is only a 4/4 itself, but having Foretell allows a player to drop on turn five, which is ideal in Aggro and go-wide cheap/token decks
There are no rules here so long as the cards in question are legal for your format
Remember that the auto-reanimation works on your flying creature too, even if the flying counter will be redundant
Not only do they give you extra value, but they can grow to gargantuan proportions in no time, thanks to the synergies with your exile theme
Bumbleflower Peace Offering Hazel of the Rootbloom Squirreled Away Modern Horizons 3 Commander Satya, Aetherflux Genius Creative Energy Ulalek, Fused Atrocity Eldrazi Incursion Disa the Restless Graveyard Overdrive Omo, Queen of Vesuva Tricky Terrain Outlaws of Thunder Junction Commander Yuma, Proud Protector Desert Bloom Gonti, Canny Acquisitor Grand Larceny Olivia, Opulent Outlaw Most Wanted Stella Lee, Wild Card Quick Draw Fallout Caesar, Legion's Emperor Hail, Caesar The Wise Mothman Mutant Menace Dr
For Commander, the number of lands you want to run in your mono-white decks can vary a lot based on how low your curve is and how many mana rocks and other ramp pieces youre running
