Time counters, introduced in the Time Spiral block, can be manipulated to keep the card in play longer or sacrifice it sooner
Getting a generic tutor like that isnt something you should glaze over, especially since you can use convoke to cast it
You can also bounce it to your hand (it's a may effect) whenever you cast anything and then recast it later for more triggers from your Commander
Especially think Life from the Loam would be a really good include as you are wanting their to be lands in your graveyard, but you may need them out
[10] Most cube enthusiasts keep their cube in a large deckbox, but you can even put the cube in a shoebox, if you dont want to get fancy
Sephiroth falls more firmly into the "death and taxes" camp than he does card-draw, gaining +1/+1 every time an opponent-controlled creature dies