EX5 Vaccine

Pretty much the same thing you're already running from last set but with 2 of the new cards from this set. Yellow Vaccine already has a lot of answers to a lot of situations, and these new cards just reinforce that.

Mitamamon's when attacking/digivolving effect helps dump out a free Bulkmon for 2 checks, and since you burn for cost, you can give that same Bulkmon jamming before he rushes in. Or drop an Angemon with rush so he can use his own effect to disrupt your opponent's board and recover to

Pretty much the same thing you're already running from last set but with 2 of the new cards from this set. Yellow Vaccine already has a lot of answers to a lot of situations, and these new cards just reinforce that.

Mitamamon's when attacking/digivolving effect helps dump out a free Bulkmon for 2 checks, and since you burn for cost, you can give that same Bulkmon jamming before he rushes in. Or drop an Angemon with rush so he can use his own effect to disrupt your opponent's board and recover to negate the cost. Plus, Mitamamon's sec -2 blanket demands your opponent's attention late game, turning off cheap wins like hybrids in close games.

Chirin helps you keep aggression at more levels, not just Champion and Mega. Being able to burn, get 2 jamming checks, and then digivolve into Seraphimon to recover the cost makes this card even more valuable than RizeGrey. In addition, late-game, you can use the inherited effect to "recover" an option, tamer, or whatever you need in the stack, again triggering your TK's, Patamons, and Seraphimons.

DeathXmon is not necessary but still a nice to have against decks that go wide if you can't keep a Pillomon out soon or long enough. Could easily be another Ruin Mode or Pillomon.