Consider this deck: Looking at it, I would never define it as a combo deck, but I would most certainly say it contains a combo, namely Channel+Fireball
If you control more than one legendary Sliver with the same name and the "legend rule" begins applying to them again (perhaps because Sliver Gravemother leaves the battlefield) you'll immediately have to comply with the rule and put all but one of those Slivers into the graveyard
For all intents and purposes, the exchanged card is taking the place of the original card
A stronger point in greens favor in Equipment decks is its ability to scale effects with power
Not only does it look like it belongs in a psychic spa, but its also a Secret Rare card
That goes double for its Enchanted Rare variant, which sees Tink go from simply towering over Hooks pirate ship to picking it up in her enormous hand and staring unimpressed at its crew