Other enchantments have "At the beginning of your upkeep, sacrifice this enchantment unless you pay ."
Search your library for a white card, a blue card, a black card, a red card, and a green card. Reveal those cards and put them into your hand. Then shuffle your library.
Counterflux can't be countered by spells or abilities.
Counter target spell you don't control.
Overload (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")
All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay ."
Each player discards any number of cards, then draws that many cards.
Draw a card.
Flying
Whenever you cast an instant or sorcery spell, you may switch Fluxcharger's power and toughness until end of turn.
Artifact creatures you control gain flying until end of turn.
, Remove one or more +1/+1 counters from among creatures you control: Put an X/X green Ooze creature token onto the battlefield, where X is the number of +1/+1 counters removed this way.
Enchant creature
Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost."
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
, : Move a +1/+1 counter from Simic Fluxmage onto target creature.
Choose one — Target nonsnow permanent becomes snow until end of turn; or target snow permanent isn't snow until end of turn.
Draw a card at the beginning of the next turn's upkeep.
, 
: Move a +1/+1 counter from Simic Fluxmage onto target creature.