mtg archon cards MTGNexus lifelink Pegasus creatures you control have lifelink MTG Magic the Gathering Harmonious

Sac lands do this most important thing impressively and then they come with a whole bunch of added utility in shuffling libraries, thinning lands from your deck, filling up the graveyard, generating landfall and so on

Like Imperial Seal or Mishra's Workshop they tend to be utility or ramp

Even if your commander is small think Talrand, Sky Summoner or Emry, Lurker of the Loch you can slot in ways to boost its power to potentially draw you a fair number of cards

Control used to get away with things this slow or mana intensive, now adays you are going to really struggle beating planeswalkers and Titans with your Capsize plan