The Heartwood Titan is not summoned. It agrees to arrive.
Deep beneath the Silverroot Forest, where the mycorrhizal network is thickest and the memory of ten thousand seasons flows like groundwater, there exist nodes of such density that they develop something resembling will. The Heartwood Titan is one such node — a concentration of ancient purpose given form.
When Virelia calls upon the Titan, she doesn't command it. She presents her case. She shares her memory of the surface — the signal, the infection, the silence spreading like frost across a window. And the Titan, having processed this information through root-pathways older than any human civilisation, decides whether the threat merits its attention.
So far, it has always said yes.
At 7 ATK and 10 HP, the Heartwood Titan is the largest single ally in Virelia's deck. Its on-play effect — restore 15 Shield and deal 3 damage — reflects its dual nature: the forest protects and the forest strikes, and it does both with the same motion, the way a tree grows toward light while its roots crack stone.
The 3 damage seems modest for a creature this ancient. But the Titan doesn't need to hit hard. It needs to persist. And at 10 HP, very little can remove it from the field. It sits there, turn after turn, its 7 ATK grinding down opposition while Virelia's other allies heal behind its bulk.
"The roots remember what the heavens forgot." — Virelia