While its cute that Yorvo lives through Realm-Cloaked Giant, it will eventually get stopped by Zombies
You can upgrade cards to have different kinds of flair
If you want to fight delve against a deck that uses it like they use Tarmogoyf, might I suggest Relic of Progenitus
Youll blink a target to protect it and immediately get a 1/1 shapeshifter token, which may act as a strong surprise blocker depending on how many typal bonuses you have
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
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