2 Reliquary Tower Expands The Hand To Infinity The normal rules of MTG say that a player can have up to seven cards in their hand, and at turn's end, if the player goes over the limit, they must spend the cleanup step discarding down to hand size
If you do this its a 2/2 creature with no name, abilities, colors, or any other attributes
I've also got a Hapatra, Vizier of Poisons coming up, if that's more your style
It takes two entire turns of glorified Llanowar Elves before you can activate that ultimatebut thats two complete turn rotations for your opponents to attack Freyalise directly
What really pushes Trail of Evidence over the top for me, though, is just how well it ties into the overall Investigate strategy, regardless of where you want to focus your Clue production and utility