Hermetic Study/Psionic Gift ( Saga/Legacy/Destiny & Odyssey/Torment/Judgment ) In both sets, these cards served a similar purpose: kill small creatures or allow your smaller creatures to threaten large ones in combat (for instance, Hermetic Study would allow your 2/2 creature to attack into a 3/3 creature with the threat of your third Hermetic Studied creature sweeping away the 3/3 should it block)
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Macro Cosmos punishes Decks that heavily focuses on sending cards to the GY

Surge Released: August 2000 View Set Symbol Gym Heroes Misty Released: August 2000 View Set Symbol Team Rocket Gyarados, Gloom, Charizard, Electrode Released: April 2000 View Set Symbol Team Rocket Meowth, Muk, Golbat, Gyarados, Gloom, Charizard, Electrode, Slowbro, Persian Released: April 2000 View Set Symbol Base Set 2 Gyarados Released: February 2000 View Set Symbol Base Set 2 Mewtwo Released: February 2000 View Set Symbol Base Set 2 Pidgeot Released: February 2000 View Set Symbol Base Set 2 Raichu Released: February 2000 View Set Symbol Fossil Aerodactyl Released: October 1999 View Set Symbol Fossil Lapras Released: October 1999 View Set Symbol Fossil Zapdos Released: October 1999 View Set Symbol Jungle Flareon Released: June 1999 View Set Symbol Jungle Scyther Released: June 1999 View Set Symbol Jungle Wigglytuff Released: June 1999 View Set Symbol Base Blastoise Released: January 1999 View Set Symbol Base Charizard Released: January 1999 View Set Symbol Base Venusaur Released: January 1999

Each Pack you open that does not redeem for a Wildcard of a particular rarity will increase the drop rate for Wildcards of that rarity for the next Pack
Gaining life helps stave off the onslaught from aggro and midrange decks