mtg card cycles The Cycling Primer put a +1/+1 counter on that creature. Feed the Cycle | Bloomburrow

As with many combo decks, the combo needs to resolve in order to win the game

It was a slow process getting the investment ready and digging far enough into the game to have the cards to spare but if a deck had no use for excess mana this was still a highly effective endgame especially for decks that used Thawing Glaciers

Scion of the Ur-Dragon offers an easy, repeatable way for you to search out dragons from your deck and put them into your graveyard, which is already a good enough ability on its own for fueling your reanimator cards

Likewise if you have all expensive, large creatures, you risk getting run over first