The fuse mechanic, introduced in Dragon's Maze , is just the entwine mechanic applied to split cards (the ability was called "splitwine" in design)
Ordinarily, this wouldnt be exciting, but in the context of the other duds we got today, its positively sparkling
Or perhaps Rings of BrightheartRings of Brightheart copying the untap ability of Basalt MonolithBasalt Monolith, tapping it for additional mana between each trigger
Cumulative upkeep means it wont stick around forever, but it should be enough to give you a good hand advantage while it does
Ruby has always been the most aggressive ink colour in the trading card game and the latest set certainly doesnt see this changing
Not only is Grand Arbiter Augustin IV able to slow your opponents down with an extra one added to all their spells, but it is also able to make your own spells cheaper