Combos Utilizing Tundra

sac mountain valley, search your library for tundra (dci has ruled is counts as an island and/or plains) and put it into play

dci rulings state tundra counts as a basic land. when granger comes into play, search your library for tundra & put it into play tapped

cast gaea's bounty to put three tundra (dci has ruled that tundra counts as a plains) into your hand from your library

tundra counts as a plains per dci rulings. use krosan verge's ability to search your library for it and put it into play tapped.

sac flood plain, search your library for tundra (dci has ruled is counts as an island and/or plains) and put it into play

sac grasslands, search your library for tundra (dci has ruled is counts as an island and/or plains) and put it into play

cast tithe & search your library for tundra (dci has ruled that tundra counts as a plains) and put it into your hand.

All dual lands count as both land types, so can be targeted by each type of Genju. Activate one Genju then the other; only the color and power/toughness changes; it retains all abilities until end of turn. This works with all dual lands!