charizard card first edition 1999 Pokemon Base Set Holo 1st CGC 10 #4/102 – Legacy Cardz Preserved in a tamper Grading The 1st Edition Charizard

Eldrazi Unbound Commander: My top pick for the most powerful commander precon is Eldrazi Unbuond

Eriette of the Charmed Apple Of the three witch sisters, I think Eriette of the Charmed Apple is the most powerful

Once per turn, if you control no other monsters: You can Special Summon 1 "Noble Knight" monster from your Deck in Defense Position, except "Noble Knight Medraut", and if you do, destroy 1 Equip Spell you control

The prime example of this would be a Twin deck that maindecks Dispel, which is effectively a 1 mana hard counter against many Burn spells, but is also useful against tons of other decks when the Twin pilot is protecting their combo

A new Level 8 Fiend absorbs your opponents monster as Link Material to Link Summon the first of a series of DARK Link Monsters that can do the same