using mtg cards in d&d Phyrexian Vault (21/74) DD Phyrexia vs. the Coalition LP Custom Card a Day 156:

Duskwatch Recruiter This has mostly been known as a combo piece in Modern to draw through your deck once you've made infinite mana with Devoted Druid and Vizier of Remedies, but Duskwatch Recruiter has way more than that going for it

It's pretty useful in decks that want sacrificing to occur but, aside from that, I don't know how powerful this ability is

Dragonite and Gengar appear as both Special Art Rares and Mega Ultra Rares, giving you plenty of valuable Japanese cards in whichever style you prefer.

ST10 - The Three Captains Other than starter deck 13, there's been one other Ultra starter deck released, starter deck 10

All things considered, it's a very low mana investment for how well it synergizes and interacts with the decks that want to include it

Please check the comments to see if it is available before purchasing