Link Monsters start the game in your Extra Deck and you Link Summon them by sending face-up monsters you control to the Graveyard
Evilswarm Exciton Knight is a powerful monster that only takes two level 4 monsters to make

N/R Rarity Festival forbidden list R Bad Reaction to Simochi R Chain Energy R Destructive Draw R Dice Jar R Galaxy Wave R Kuriphoton R Malevolent Mech Goku En R Performapal Popperup R Satellarknight Alsahm R Secret Blast R White Veil N Abyssal Designator N Appointer of the Red Lotus N Banquet of Millions N Chain Burst N Darklord Nurse Reficule N Destruction of Destiny N Extinction on Schedule N Garbage Lord N Giant Koazky N Hieroglyph Lithograph N Lucky Punch N/R Rarity Festival limited list R Backfire R Bad Luck Blast R Dark Snake Syndrome R Des Koala R Fairy Wind R Fish of the Unrivaled Tenyi R Megalith Phul R Moon Mirror Shield R Morphing Jar #2 R Orcust Harp Horror R Poison Mummy R Planet Pathfinder R Self-Destruct Ant R Spiritual Fire Art Kurenai R Stealth Bird R Supreme King Dragon Darkwurm R Tenyi Spirit Vishuda R True Draco Apocalypse R Utgarda, Generaider Boss of Delusion N Blasting the Ruins N Fire Trooper N Fists of the Unrivaled Tenyi N Kozakys Self-Destruct Button N Left Arm of the Forbidden One N Left Leg of the Forbidden One N Mecha-Dog Marron N Memory Crusher N Michion, the Timelord N Misfortune N Needle Ball N Phantasm Spiral Battle N Right Arm of the Forbidden One N Right Leg of the Forbidden One N Sea Stealth Attack N/R Rarity Festival semi-limited list R Brain Control R Dreiath II, the True Dracocalvary General R Harmonizing Magician R Magical Meltdown R Megalith Bethor R Night Dragolich R Psi-Reflector R Psychic Blade R Star Seraph Scepter R Zolga the Prophet N Majespecter Crow Yata N Majespecter Raccoon Bunbuku N Raphion, the Timelord There are so many amazing N/R decks to use though

Backrow = Cards in your Spell/Trap Zone Cavalry = Loading
And it has an absorption effect like Sacrifice that goes through the battle but does not target, and there is no gap in the cost of negate the equipment card that absorbs the monster effect
The sleeves are easy to usesimply slide your cards into place for quick protectionand fit perfectly into 3x4 top loaders, binders, and card saver holders, making organization effortless