This ability will also copy the next such spell or ability that you use this turn, which can be a very powerful effect with the right cards
There are two imporant things to note about reducing the harmonize cost this way: You can only tap one creature per card harmonized
Whenever a land you control enters, if you control seven or more lands, up to one target land you control becomes a 3/3 Elemental creature with haste
Coming in second is long-time runner up Eater of Days, followed by Felidar Sovereign for Standard, both of which will return on the next poll
I dont think Wizards ever made a statement about how many cards can fit in these boxes
For 3 mana, you get to do one of the following: Add a red mana to your mana pool for every card in an opponents hand Exile the top 3 cards of your library and gain the ability to play them during the same turn Do both of the above if your commander is in play Powerful legendary creatures have become increasingly cost effective in recent years, so it is laughably easy to get both effects for 3 mana, which will usually net you 5-7 mana to play your newly accessible cards
