When you do, put any number of target creature cards with total mana value X or less from that player's graveyard onto the battlefield under your control
Hailing from Commander 2015, Kalemne is often overlooked in favor of the more popular experience commanders like Meren of Clan Nel TothMeren of Clan Nel Toth or Ezuri, Claw of ProgressEzuri, Claw of Progress
If excess damage would be dealt to that creature this way, instead that damage is dealt to that creature's controller and you convert Megatron
Time Bruses trigger on creatures that already threaten damage
Ensure You Have Graveyard Hate Always Necessary Graveyard decks are in just about every format, so you always want to dedicate a few slots to graveyard hate or risk folding to them
Enlightened Tutor may get you an enchantment or artifact for a single mana, but you lose a card (the tutor), and you still need to cast said enchantment or artifact