all aragorn cards mtg Aragorn, the Uniter LotR MULTICOLOR LEGENDS Magic Custom Commander – CommanderComplete Whenever you cast a white spell MTG Aragorn, King of Gondor

While it requires a bit of wheeling and dealing, you can likely talk opponents into letting you have whatever you want if theres a more obvious threat on the table

Doch Ezio hat mehr im Gepck als nur Tempo

It'll definitely slow the process, but they're not perfectly airtight so it will happen over time

Another popular card and commander for poison decks is Atraxa, Praetors' Voice because it allows you to proliferate on your every end step

Yes, this will ultimately gain you tempo when it kills and elf or Mother of Runes on turn one but all the other options here also at least manage that

Then for each creature card you own in exile with a memory counter on it, create a tapped and attacking token that's a copy of it