Other roleplayers in that deck were Elvish Warmaster and Gala Greeters for a very token-focused variant on Elves
I'm guessing that appearing next to the ever so famous fiery lizard, one of the coveted rare Pokmon cards of yesteryear, has helped fans find a new appreciation for Pikachu & Zekrom GX - though how anyone could've missed how awesome it is in the first place beats me
One of Zinnias abilities is to give creature spells you cast Offspring
Efficiency can be determined simply by the reward you receive at certain mana costs (Counterspell and Cancel do the same thing, but Counterspell costs less), the total payoff you receive from a single card (Hull Breach and Decimate are both good cards, but Decimate usually covers much more ground), or the payoff you receive in conjunction with other cards (Anointed Procession makes other token production cards completely absurd if unchecked, which is usually better than adding one more card that simply makes tokens like Spectral Procession in a token strategy)
Especially in constructed formats
It is interesting to see all the changes on the card from shadowless to unlimited