Using easy-to-decipher card iconography, players can always tell which cards can be played as ink and which ones cannot
+1: Untap all creatures you control
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In Visions (February 1997), islandwalk's (as an example) reminder text said, "If defending player controls any islands, this creature is unblockable." In Classic Sixth Edition (April 1999), the reminder text said, "This creature is unblockable if defending player controls an island." Then, with Urza's Destiny (June 1999), this was minusculely changed to "This creature is unblockable as long as defending player controls an island." This is how the reminder text has appeared since, with the exception of Portal Three Kingdoms (July 1999) that temporarily changed it to, "If defending player has an island in play, CARDNAME can't be blocked." Landwalk has been in a lot of sets through Magic's history
Tribal decks are usually good at buffing creatures from the same tribe but dont have much card advantage going on
But thats because what its doing is so unreasonable the cards that would back it up just dont get printed