Prioritize fit and synergy over sheer stats or popularity
If you've got more than five counters each turn, you could even trigger Sage of Hours multiple times to build up your +1/+1 counters even further
Do not feel you need to save it for the late game
An avid Magic: The Gathering spellslinger for over 15 years, you can always convince him to shuffle up for a game (or three!) of Commander.
BAGS, a cryptocurrency trading application, has even created a $KABUTO currency
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player discards a card.) Swampcycling ( , Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.) Unlock the potential of your card collection