Doppelgang is a bad clone for 5 mana, a 4-for-1 at 8 mana, and a logistical boardstate nightmare at anything at or above X=3
Toss a +1/+1 counter here
You'll get the corny dialogue and levity of Barret and the others that the game is known for while climbing up the stairs in Shinra HQ
For decks with three or more colors, where you might only be able to afford a small number of MDFCs since you'll need most of your lands to either be basics (for ramping / tutoring purposes) or tap for multiple colors of mana, the best MDFCs are Bala Ged Recovery (seriously, if you have green mana in your deck, play this card), Valakut Awakening, Hagra Mauling, and Ondu Inversion, along with the mythic cycle, which is almost always good if you can afford another land that only taps for a single color of mana
Hello, your highness
The Survival Rate Trap: In 2026, every "hit" goes from a pack straight into a magnetic holder