As The Underworld Fantasy Queen enters, it becomes spring.
At the beginning of your upkeep, the next season arrives.
Spring — Whenever Her Majesty enters or attacks, you may
sacrificeTo sacrifice a permanent, its controller moves it from the battlefield directly to its owner’s graveyard. A player can’t sacrifice something that isn’t a permanent, or something that’s a permanent they don’t control. Sacrificing a permanent doesn’t destroy it, so regeneration or other effects that replace destruction can’t affect this action. (CR 701.21) another creature. If you do, draw a card.
Summer — Whenever a creature an opponent controls
diesIs put into a graveyard from the battlefield. (CR 700.4), put a +1/+1
counterTo counter a spell or ability is to cancel it: remove it from the stack without resolving it. A counter on an object or player is instead a marker that changes characteristics or interacts with rules or abilities; for example, a +1/+1 counter modifies a creature’s power and toughness. (CR 701.6; 122.1) on Her Majesty.
Fall — Whenever another creature
diesIs put into a graveyard from the battlefield. (CR 700.4), target opponent loses 1 life and you gain 1 life.
Winter — Her Majesty can't attack or block.