Crown of the Ages allowed you to change the target of an enchantment, Jeweled Amulet allowed you to stockpile Mana much more efficiently than with a Mana Battery, and Runed Arch would allow any massive weenie army to get some of its creatures through unblocked
(It's an artifact with " , Sacrifice this token: Add one mana of any color.") Creature - Human Pirate Color tag templates(None) Professional Face-Breaker Menace Whenever one or more creatures you control deal combat damage to a player, create a Treasure token
Here are some more examples of creature lands: These cards all have different sets of strengths and weaknesses
Alternatively, you may want to push Karlov off to a supporting role in a list that focuses on a theme of +1/+1 counters like Ghave, Guru of Spores
When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card and put it onto the battlefield tapped