(If the Insect dropped by the plus ability enters the opponent's battlefield, isn't a Spinal Parasite better than a Giant Solifuge?) Jeweled Lotus Lion's Eye Diamond These are cards that 'produce 2 or more mana' and 'produce mana on the turn they are played.' If you don't have these two in your opening hand, you cannot play Grist on turn 1
This can be achieved in a number of ways, from gaining incidental value from each spell, to chaining several together for a massive payoff
The chosen recipient must be able to legally be enchanted by the Aura, so a player or permanent with protection from one of the Aura's qualities can't be chosen this way
2020-11-10 If your Commander deck has two commanders, you can only include cards whose own color identities are also found in your commanders' combined color identities
Evil Eye of Orms-by-Gore
Now, in case you havent heard, these are two sides of a double-faced card