Guardian of the Great Conduit 

Creature — Elemental
$0.04 #29459 0.00 9.9 years
Reach (This creature can block creatures with flying.)
As long as you control a Nissa planeswalker, this creature gets +2/+0 and has vigilance. (Attacking doesn't cause it to tap.)
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Cards similar to Guardian of the Great Conduit expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Avid Reclaimer79%
$0.10↑#281930.38↑9.1 years
"
: Add
or
. If you control a Nissa planeswalker, you gain 2 life."
Dovin's Automaton74%
$0.23↑#298760.22↑7.6 years↓
"As long as you control a Dovin planeswalker, this creature gets +2/+2 and has vigilance."
Vivien's Crocodile73%
$0.29↑#305270.27↑7.2 years↓
"This creature gets +1/+1 as long as you control a Vivien planeswalker."